A Text Book of Physiology Volume 1 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 edition. Excerpt: ...water. (4) Acetic acid, 50 c.cm. The kind used by chemists is 33 per cent strong. /.. INJ K' METHODS OF MICROSCOPICAL JIESEAR( 201 (5) Acetate of iron (that purchasable in chemists' shops is 96 per cent, strong) must be inspected shortly before use (amount, 10 c.cm.). (6) Xilric acid. It is necessary to possess a flask containing 100 c.cm. of concentrated nitric acid of specific gravity, 118. (7) Pure hydrochloric acid, 50 c.cm. (8) Chromic acid. Make a 10 per cent, solution (10 grms. of newly procured crystallized chromic acid to be dissolved in 90 c.cm. of distilled water). Of this, make (a) a solution of chromic acid, -1 per cent. (10 c.cm. of the strong solution to 990 ccm. of distilled water), and (b) a 5 per cent, solution of chromic acid (50 c.cm. of the first solution to 950 ccm. of distilled water). (9) Bichromate of potash. Dissolve 25 grms. in 1,000 c.cm. of distilled water. It dissolves slowly (from three to six days). (10) Mailer's fluid. 30 grms. of sulphate of soda and 60 grms. of pulverized bichromate of potash are dissolved in 3,000 c.cm. of distilled water. The solution is effected slowly at the ordinary temperature of a room (from three to six days). (11) Picric acid. Keep 50 grms. of crystals, and also a saturated aqueous solution o00 c.cm). The crystals must always be in a layer, from 2 to 3 mm. in depth, at the bottom of the flask. It dissolves easily. (12) Sulplio-picric acid (Kleinenberg). Into 200 c.cm. of saturated solution of picric acid, pour 4 c.cm. of pure sulphuric acid; a dense precipitate immediately forms. After the lapse of an hour, this mixture is filtered, and the filtrate is diluted with 600 c.cm. of distilled water. The residuum left behind in the filter is to be thrown away. (13) Osmic acid....