-• 



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# 



« 



§2. Deleterious effect s of Mepbitic Air» 



I ft. About 1 5 feet, conllil'ing of the' materials of the pl^ 



2d. 14 feet, confiding of black mud, clay, fand, and 



the heterogeneous fubflances which had been 'depofited by the^ 



lea. . .. 





3d. A feet and a half, confifllng of very black mud, 



intermixed with the unconfumed roots of marm grafs, fhells 

 and other marine produdlions. 



After palling this ftratum, the workmen began to bore. 



4th. 30 feet of lighrblue clay. 



w 



5th, — — 2 3 feet of clay mixed with fand* ^ 

 6th. 7 feet of hard and dark blue clay 



^rth. 3 feet of clay, ftones and ilate 





'\ ^ 



-u V 



s^ ^ » ^ ^ <* ' ■ - *.* 



On the lafl: ftratum the workmen ufed the drill, and having 

 broke through the cruft of flate, the water gui|\g4 up with 

 ^eat force, and rofe to about 1 2 feet from the furface, where 



has ilood ever lince 



«■ • r 



§ 



(^ 



4 



'Upon eajiering the third ftratum, confiding of black mud,' 

 intermixed with the roots of marfh grafs, ftiells, and other ma- 

 rine producflions, the workmen perceived an uncommon foetid 

 fmell. Faintnefs and dlfKculty of breathing Succeeded, and to 

 fo great a degree, that they left the well, and could not be per- 

 fuaded to go down again. 



Some hours after, a Mr. 7/7^^;?, the mafter workman, who 

 was not prefent when the labourers experienced a difficulty of 



2 breathing, 



