ue, is sometimes substituted by horn, blood, or leather, denses with the steam is either sold to farmers or concen- specimens of crystals a valuable addition to their stock of to endeavor to give a product similar in compositiom to the slides. Not only are they of great interest, but as an intro-… … merely of the substance cine, M. Hillairet read a Fig 1.—Common Salt. Fig. 2.—Potassium Nitrate. Fig. 3.—Oxalic Acid. - to be obtained, a micro- report prepared in answer scopic examination is of to a questions aked by the great importance; it has, too, this further merit, that the gaining the clue…
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