On the presence of arsenic in the vapours of bone manure : a contribution to sanitary science / by James Adams.
- Adams, James
- Date:
- 1876
Licence: Public Domain Mark
Credit: On the presence of arsenic in the vapours of bone manure : a contribution to sanitary science / by James Adams. Source: Wellcome Collection.
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![GPOUN TION Tes PART |[.—ON A MANURE WORK. Novel views relating to Arsenic in vapours of Bone Manure—in connec- tion with important case recently litigated at Edinburgh—fatal illness attributed to vapours, 5 “On a Manure Work”—processes of manufacture—offensive gases, acids, and other exhalations—arsenic noticed for first time in vapours-of Bone Manure—alleged to be always present, All constituents of Manure vapours injurious—neighbourhood of this Manure Work unhealthy—the nuisance aggravated by alba winds, . 9 This Manure Work ill constructed—illustrations—its operations occasion a serious interference with the comfort of life, . : 12 Exhalations from decomposing animal matter injurious—Sulphuric Acid acting upon Bones causes vapours which produce discomfort, and aggravate disease, . . i ®Chemical” poisons distinguished from “ morbid” poisons—bad smells not the real source of danger—development of epidemic disease favoured by emanations from decomposing animal matter—grave yards—military camps—a Manure Factory, . ° ; 19 Stages of the enquiry in which the presence of Arsenic in Manure vapours was proved, . ° : : : : : ; 22 PART 11].—ON THE PRESENCE OF ARSENIC IN THE VAPOURS OF BONE MANURE. Conference of skilled witnesses with Counsel—Dr. Macadam’s opposition to the Arsenic ‘‘theory’—his reasons and unsuccessful experiments, 23 The scientific question thus raised will be discussed in six propositions, 25 1st Prop.—Sources of Sulphuric Acid contain Arsenic—nearly all Com- mercial Sulphuric Acid made from Iron Pyrites— distinction between Iron Pyrites and Copper Pyrites—quantities of Pyrites imported—a tabular statement of quantities of Arsenic contained in Iron Pyrites—average quantity, . : : 25 2nd Prop.—Non-purified Sulphuric Acid always contains Arsenic—in variable quantity—causes of variation—no correct data previously obtainable— curious experience—a reliable and comprehensive tabular statement of exact quantities, shewing the range and the average of Arsenic in Sulphuric Acid now furnished, . ° 30 3rd Prop.—Pure Sulphuric Acid very ie peas tar ae ranges in price, : 34 4th Prop. Pure Sulphuric Acid not necessary “for some manufactures— especially manure, 36 5th Prop.—Fatal results from accidental or unsuspected presence of. arsenical vapours have occurred—illustrations, . : 36 6th Prop.—In manufacture of Bone Manure, Arsenic derived from Sulphuric Acid is given off in vapour—extent and importance of manufacture—quan tities of Bones, Coprolites, Acid, &., employed— an enquiry entered upon from hypothetical considerations—satis- factory results of preliminary experiments—advantages possessed by -](https://iiif.wellcomecollection.org/image/b33674346_0003.jp2/full/800%2C/0/default.jpg)
