On the presence of arsenic in the vapours of bone manure : a contribution to sanitary science / by James Adams.

  • Adams, James Maxwell, 1818-1899.
Date:
1876
Catalogue details

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.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    3rd Prop.—Pure Sulphuric Acid very costly—causes—great ranges in price, 39 4th Prop.—Pure Sulphuric Acid not necessary for some manufactures—espe- cially manure 5th Prop.—Fatal results from accidental or unsuspected presence of arsenical vapours have occurred—illustrations, 41 6th Prop.—In manufacture of Bone Manure, Arsenic derived from Sulphuric Acid is given off in vapour—extent and importance of manufacture quantities of Bones, Coprolites, Acid, &c., employed—an enquiry entered npon from hypothetical considerations—satisfactory results of preliminary experiments—advantages possessed by Glasgow Chemists in such an enquiry—heat produced by action of acid upon bones—important crucial confirmation obtained in deposit of condensed vapours—distinction between seeing and perceiving—extraction of Arsenic from a complex material requires time, and a chemical process—chemical agents engaged in the manufacture—three volatile compounds of arsenic given off, . . 43 Corroborative experiments of— Egbert T. Tatlock, P.R.S.E., Public Analyst for Glasgow, . 46 Mr. N. E., Professional Chemist, 47 Dr. Machattie, Consulting and Analytical Chemist, &c., . . 47 Mr. M., Professional Chemist, 52 W. DiTTMAK, F.E.S.E., Professor of Chemistry, Andersonian University, 55 E. J. Mills, D.Sc. (Lond.), F.E.S., Young Professor of Technical Chemistry in the Andersonian College, 57 Dr. Ja8. M. Milne, Consulting and Analytical Chemist, Public Analyst for Dunfermline, &c., 59 PART III,—GENERAL OBSERVATIONS. No difficulty experienced by Chemists, making a iona-fide investigation, in tracing Arsenic from its source in Iron Pyrites into Sulphuric Acid— thence in the vapours from Manure into the atmosphere, . . 62 Pounds weight of Arsenic disengaged in vapour in a single day from some Manure Works, 6^ Forces of arsenical contamination of atmosphere from Manure Works are of a maximum, and of a minimum intensity, 64 Three sets of injurious conditions in vapours of Manure, ... 65 Other elements of mischief besides arsenic or morbid miasms, viz., Fluorine, Antimony, &c.—illustrations, 65 In majority of Manure Works no effective preventive measures—subject trifled with as a mere matter of smells —obstacles to improvement arising from ignorance, This memoir not intended to shew cases of actual injury, but to point out sources of danger—effects of habit in rendering body-not liable to hurtful influences—groups of workers in various occupations may be found, who arc proof against customary hurtful effects, ..... 68