Scientific American Supplement, No. 312, December 24, 1881 eBook

This eBook from the Gutenberg Project consists of approximately 122 pages of information about Scientific American Supplement, No. 312, December 24, 1881.
chrysarobine was innocuous.  In some instances the rabbit died within two hours.  It was also found that in the case of the patient in the Breslau Hospital the pyrogallic acid had acted by its extreme avidity for oxygen when in contact with alkaline fluids.  The blood had been affected, and the red corpuscles were destroyed and turned brown.  Very little urine was voided, but it presented a most extraordinary character, being dark brown and very thick; it contained no blood corpuscles, but a considerable amount of haemoglobine (the coloring matter of the corpuscles), which was recognized by the absorption bands it gave in the spectroscope.  The kidneys were uniformly bluish black.  The blood had a dirty brownish red tint, and contained an abundance of detritus of red corpuscles.

This case points out once more that photographers cannot use too much prudence in dealing with chemical products which are in daily use by them, and the noxious properties of which, they are apt to forget.—­Photo News.

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