 pithead a waggonway ran to Whitehaven harbour. The pumping engine originally installed at Saltom proved inadequate, and  by 1739 two much larger ones were in use.  But Saltom pit allowed the working of much coal inaccessible from previous pits;  by 1765, workings extended a mile and a half from the shaft and as much as three-quarters of a mile out to sea.   Clerk of Penicuik (who thought it folly to have assumed the ingress of sea water would be manageable) commented:

At Whitehaven I took notice that Sir Ja. Louder, by the meer force of money, was working a field of Coal under the sea, which neither he nor any man else had ever attempted but from ignorance and a vast store of Richess.

Lowther had spent on a scale beyond other Cumbrian coal-owners (and beyond most other coal-owners elsewhere in Britain) – £1900 had been invested before any significant amount of coal was raised, and it took over £4,500 to get the pit into full production. But the expenditure was rewarded: by 1752 over a quarter of a million tons had been extracted and sold at a profit of over a shilling a ton; Saltom pit continued to be worked until 1848.

Dealing with firedamp
The blower encountered in sinking Saltom pit was described to the Royal Society by Lowther, who sought suggestions on how to deal with firedamp in his pits. A major release had taken place on breaking through a layer of black stone into one of the higher coal seams. Ignited with a candle, it had given a steady flame "about half a Yard in Diameter, and near two Yards high" The flame being extinguished, and a wider penetration through the black stone made, re-ignition of the gas gave a bigger flame, a yard in diameter and about three yards high which was only extinguished with difficulty. The blower was panelled off from the shaft, and piped to the surface where over two and a half years later it continued as fast as ever, filling a large bladder in a few seconds. The Society members elected Sir James a Fellow, but were unable to come up with any solution, or improve on the assertion (eventually found to be incorrect) of Carlisle Spedding, the paper's author, that "this sort of Vapour, or damp Air, will not take Fire except by Flame;
pithead a waggonway ran to Whitehaven harbour. The pumping engine originally install at Saltom prove inadequate, and   by 1739 two much large one were in use.   But Saltom pit leave the working of much coal inaccessible from previous pit;   by 1765, workings extended a nautical mile and a half from the shaft and equally much as three - quarters of a mile out to ocean.    Clerk of Penicuik (who thought it folly to have simulate the entrance of sea water would be manageable) gloss: 

 At Whitehaven I took notice that Sir Ja. Louder, by the meer force of money, was work a field of Coal under the sea, which neither he nor any man else had ever attempted but from ignorance and a huge store of Richess. 

 Lowther had spent on a scale beyond other Cumbrian coal - owners (and beyond most early ember - owner elsewhere in Britain) – £ 1900 had been invested before any significant amount of coal was raised, and it took over £ 4,500 to get the pit into entire production. But the expenditure was reward: by 1752 over a quarter of a million tons had been extracted and sold at a net income of over a shilling a short ton; Saltom pit continued to be exploit until 1848. 

 Dealing with firedamp 
 The blower encountered in sinking Saltom pit was described to the Royal Society by Lowther, who try suggestions on how to deal with firedamp in his pits. A major release had taken place on violate through a layer of black stone into one of the higher coal seam. Ignited with a candle, it had given a steady fire " about half a Yard in Diameter, and near two Yards gamey " The flame being extinguished, and a broad penetration through the black rock made, re - ignition of the gasoline gave a adult flame, a thousand in diameter and about three yard high which was only extinguished with difficulty. The blower was empanel off from the shaft, and piped to the surface where over two and a half years later it continued as fast as ever, fill a large bladder in a few seconds. The Society member elected Sir James a Fellow, but were unable to come up with any solution, or improve on the assertion (eventually recover to be incorrect) of Carlisle Spedding, the paper's author, that " this sort of Vapour, or damp Air, will not lead Fire except by Flame;
 pihhead a waggonway ran to Whitehaven haryiur. Thx pumpihg engind originally installed at Saptim prived inadequate, and  bh 1739 two mubh larger onew were in use.  But Saltom iit anoowed the worklng of much coal inaccesshbue from previous pits;  by 1765, workings evtended a mile and a hajf fgoi ths shaft and as much as three-quarteds of a mile out to xea.   Clerk of Penicuik (whl thlught it folly to jave assumee thq ingress of rea water would be manzgeable) commented:

At Whitehaven K tool notice tyar Slt Ja. Louder, uy the meer force of money, was wotking a field pf Roal under the sea, which ieither he nor any mwn else hdd ever attempted byt from ignmranzw avd z tasf storf oh Richess.

Losther had spent on a scale beypnq other Cumbrizn coaj-orners (and beyond most other coal-owners tlsewgere in Britain) – £1900 had bwen invested before ajy signifycant amount of coal was raised, and it took over £4,500 to gxt tht ilt ivro full production. But the expenditure was rewawsec: ny 1752 over a quartcr of a million toms hsq been extracjed and somd at a profit of lver a fhillung a ton; Salyom pit continued to be worjed until 1848.

Declibg with firedamp
Thz blower encuuntgred im sinking Saltom pit war deacribed to hhe Royal Rociety by Lowthdr, ehm sought suggestions on hor to deal witk firedaop im his [its. A majlr release had taken plafe on bseaking thgough a layer of black stone invp one of the hhghvr coal szams. Innited with a cwndle, it had gnven a sceady wlame "aboun half a Bard in Diamqter, and near jwo Yards higi" The flaie bwing extingjkshed, and a wicer penetgauion throuth the black stone maas, re-ignition of tht tas gave a bigber flwmv, a ywsd in diametar avd xnout ghree yards figh which was only extitguiahed with difficulyy. The bloqer was [anelled off grom the shaft, and pipev to tie surgacg where over two and a half yeads later lt gontinued as sast as ever, filking a large bladder in a few seconds. Tie Society members elecred Sir James a Felkpw, but were unabje to coma up with any solutiin, or improve on uhe assertion (eventuallg foung to he incorrect) of Carlisle Spedding, the paper's author, that "this sort of Vapiur, or damp Air, wiml npt tane Yire exsept uy Flame;
pithead a waggonway ran to Whitehaven harbour. engine installed at proved inadequate, and ones in use. But pit allowed the of much coal inaccessible from previous by 1765, workings extended a mile and a half from the shaft and much as three-quarters of a mile out to sea. Clerk of Penicuik (who it to assumed ingress of sea water would be manageable) commented: At Whitehaven I took notice that Sir Ja. by the meer force of money, was working field of Coal under sea, which neither he nor man had ever but ignorance a vast store Richess. Lowther had spent on a scale beyond other Cumbrian coal-owners (and beyond most other coal-owners elsewhere Britain) – been invested any amount coal was raised, took over £4,500 to get the production. But the expenditure was rewarded: by 1752 a quarter a million tons had been extracted sold at a profit of over a shilling ton; Saltom pit continued to be worked until 1848. Dealing with firedamp The blower encountered Saltom pit was described the Royal Society Lowther, sought on to deal firedamp in his pits. A major release had taken place on through a layer of black stone into one of the seams. with a candle, had given a steady "about a Yard in Diameter, two high" extinguished, a penetration through the black made, re-ignition of the gas a bigger flame, a three yards high which was only extinguished with The blower was panelled off from the and piped to the surface where over two and a half years it continued as ever, filling a large bladder in a seconds. The Society members Sir James a Fellow, but were unable to come with solution, or on the assertion found to be of Carlisle Spedding, author, that sort Vapour, will not take Fire except by
 pithead a waggonway ran to WhiTehaven harBour. THe pUmpInG engIne oRiginally instaLLed aT Saltom proved inadequatE, and  bY 1739 tWO mucH LaRger oNes were IN uSE.  but saLtOm pIt ALlOwed tHe wOrking oF much coal iNacCeSsible from prEViOus pits;  by 1765, wOrkIngs extended A miLe and a HaLf fROm the ShaFt and As much AS three-Quarters oF a MIle out TO sea.   CleRK Of peniCuik (who thought it fOLlY To have assumed tHe ingrEsS Of SEA waTer Would be manAgEable) COmmenteD:

at wHITehAVen I took noticE that Sir Ja. LOUdeR, by the MeEr fORce of mOney, wAs WOrkIng a field of coal Under the sEa, whicH Neither HE nor any Man elsE haD evEr atTEmPtEd bUt FRom IGnOraNCe aNd a vast sToRe Of RicHess.

lOWTHer hAd sPent On a scAle beyond otheR CuMbriAN coAl-ownErs (anD beyOnD most Other cOal-owNeRs elsewhere in BrItaiN) – £1900 had been iNveStEd bEfOre anY SignifIcaNt aMount of Coal was RAisEd, AND It Took over £4,500 to get the piT iNTO fUll produCtion. BUT tHe EXpendituRe Was RewaRDEd: by 1752 oVer a QUaRter of a mIllion TOnS hAd been eXtRacted AnD soLd aT a proFIt of Over a sHilling a Ton; SaLTom pit continueD To be worked untIL 1848.

DEALiNG witH fiRedamp
The blOwer ENcouNterED iN siNKing SAltom PiT WaS Described to the Royal soCiety bY LowtHer, who sought sUggestions ON HOw to deal With FIrEDamp in his pits. A Major Release had TAken placE on brEaking thRough a layER Of black sTonE inTo oNe oF THe Higher coal seaMS. igniTeD with a cAndLe, it had GivEn a SteAdy FlAme "about hAlf a Yard In diAmEtEr, aNd neaR Two Yards HiGh" THe FlaMe beiNG extinGuishEd, anD a WiDEr pEnetratIOn THRougH tHe BlacK stOnE made, Re-igNItiOn of the Gas gave a bIggER flaMe, A yArd in diAmeter and abouT tHree yards hIgH whIch was ONLy extingUished with difficulty. The BLower waS paNelleD off From the shAft, And pipEd tO The surFace whEre ovEr Two AND a halF YEaRs lAtEr it continUED as Fast aS eVer, fIlling a Large bladder in a few SEcoNds. The Society MemBers ELEcTed sIr jAmeS a fEllOW, But were unable to Come up with AnY SoLution, or imPRovE oN the assErtion (eVentuALly founD to be incoRrect) of CaRlIsle sPEddIng, the papeR's author, That "this sORt of VAPoUr, or dAmp air, wilL nOt tAke FiRe excePT by flame;
 pithead a waggonway ran t o Whitehav en ha rbo ur.  T he p umpi ng engine orig i nall y installed at Saltomprove di nade q ua te, a nd  by1 73 9 two  m uc h l ar g er  ones  we re in u se.  But S alt om  pit allowed th e workingofmuch coal in acc essibl efro m  prev iou s pit s;  by 1765,workingsex t endeda  mile a n d  a  hal f from the shafta nd as much as thr ee-qua rt e rs o f a  mi le out tose a.  C lerk of Pe n i c uik (who thoughtit folly to hav e assu me d t h e ingr ess o fs eawater would  bemanageabl e) com m ented:At Whit ehaven  Itoo k no t ic etha tS irJ a.  Lo u der , by the  m ee r for ce o f m o ney,  wa s wo rking  a field of C oal  und e r t he se a, wh ichne ither  he no r any  m an else had eve r at tempted b utfr omig noran c e anda v ast  storeof Rich e ss. 
L o w th er had spent on asc a l ebeyond o ther C u mb ri a n coal-o wn ers  (an d beyon d mo s tother co al-own e rs  e lsewher ein Bri ta in)  –£1900 hadbeen i nvestedbefor e  any significa n t amount of c o al w as rais ed,  and it too k ov e r £4 ,500 to  ge t  thepit i nt o  f u ll production. Butth e expe nditu re was reward ed: by 175 2 o ver a qu arte r  o f  a million ton s had  been extr a cted and  sold  at a pr ofit of o v e r a shil lin g a  to n;S a lt om pit contin u e d to  b e worke d u ntil 18 48. 

D eal ing  w ith fired amp
Thebl ow er  e nco unter e d in sin ki ngSa lto m pit was de scrib ed t oth e  Ro yal Soc i et y by L ow th er,who  s ought  sug g est ions on  how to d eal with  f ir edamp i n his pits. A  m ajor relea se  ha d take n place on  breaking through a lay e r of bl ack  ston e in to one of  th e high erc oal se ams. I gnite dwit h a can d l e,  it  h ad given a s tea dy fl am e "a bout ha lf a Yard in Diame t er,  and near two  Ya rdsh i gh " T h ef lam eb ein g extinguished, a nd a wider  p e ne tration th r oug hthe bla ck ston e mad e , re-ig nition of  the gasga ve a b igg er flame,a yard i n diamete r  anda bo ut th ree  yards  h igh  whic h waso nly  exti nguish ed  withdiffi cu lty. The  blower was panelled of f from  thesha ft, and p ipe d  to  the surf acewhere over  tw o a nd ahal f  year s la t er  it conti nued as fast a s  e ver , fi lling a lar g e bla dderina  few s econ ds. The Society m e mbers electedSirJ a mes  aF ello w,  but were unab leto c ome up w it h any solut ion, orim p roveon the  asser tion (e v e nt u ally f ound  to  be incor rec t) of Carl is le Speddi ng,th e pape r's au t hor, t hat "this sort o f Vap o u r, or dam p Air ,will no t  tak e Fire exc ept by Flam e;
 pithead_a waggonway_ran to Whitehaven harbour._The pumping_engine_originally installed_at_Saltom proved inadequate,_and  by_1739 two much larger_ones were in_use._ But Saltom pit allowed the working of much coal inaccessible from previous pits;__by 1765,_workings_extended_a mile and a half_from the shaft and as_much as_three-quarters of a mile out to sea. __Clerk of Penicuik_(who thought it folly to have assumed the ingress_of sea water would be manageable)_commented:

At Whitehaven I_took_notice_that Sir Ja. Louder,_by the meer force of money,_was working a field of Coal_under the sea, which neither he nor_any man else had ever attempted_but from ignorance and a_vast store_of Richess.

Lowther had spent on_a scale beyond_other Cumbrian_coal-owners (and beyond_most other coal-owners elsewhere in Britain)_– £1900 had_been invested before any significant amount_of_coal was raised,_and_it_took over_£4,500 to get_the_pit into_full_production. But the expenditure was rewarded:_by_1752 over a quarter of a million_tons had been extracted_and_sold at a profit_of over a shilling a_ton; Saltom pit continued to be_worked until_1848.

Dealing with_firedamp
The blower encountered in sinking Saltom pit was described to the_Royal Society by Lowther, who sought_suggestions on how to_deal with_firedamp_in his pits._A_major release_had taken place on breaking through a_layer of_black stone into one of the_higher coal seams. Ignited_with_a candle, it had given a_steady flame "about half a Yard_in Diameter, and near two_Yards_high"_The flame being extinguished, and_a wider penetration through the black_stone made, re-ignition_of the gas gave a bigger flame,_a_yard in diameter and about three_yards_high which was only extinguished with_difficulty._The_blower was panelled off from_the shaft, and piped to the_surface where over two and a half years later_it continued as_fast as ever, filling a_large_bladder_in a few seconds. The Society members elected Sir James_a Fellow,_but were unable_to come up with any solution, or improve on the_assertion (eventually found to be incorrect) of_Carlisle Spedding, the paper's author, that "this sort of Vapour, or_damp Air, will not take Fire except by_Flame;