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The lens . sfer to balsam is simply are in the Museum a number of silver-carmine stainings,made as long ago as 1868, which are quite unchanged, while allsimilar preparations mounted at the Museum by other methods andat the same time have long since perished. It will give the writer great pleasure to give any microscopistaccess to the Museum preparations of this class, and to give per-sonal attention to their comparison with the preparations of thosewho may believe themselves in the possession of more satisfactorymethods. It may be mentioned, in conclusion, that the mode of tra
The lens . sfer to balsam is simply are in the Museum a number of silver-carmine stainings,made as long ago as 1868, which are quite unchanged, while allsimilar preparations mounted at the Museum by other methods andat the same time have long since perished. It will give the writer great pleasure to give any microscopistaccess to the Museum preparations of this class, and to give per-sonal attention to their comparison with the preparations of thosewho may believe themselves in the possession of more satisfactorymethods. It may be mentioned, in conclusion, that the mode of transferring delicate membranous preparations from glycerine to balsam, which has been just sketched, is applicable also to ordinary carmine-stain- ings, to gold-stainings, to osmic-acid-stainings, and in general to any thin pieces not yet hardened which it is desired to preserve permanently in balsam without corrugation or distortion. ^^- y- y- Woodward, U. S. Army,Washins^ton. THE July 187 2 Plate FUNGI IN MILK. 1872.] Fungi in Cows Milk. 165 FUNGI IN COWS MIIK. The presence of living organisms in milk has been recognizedby various observers. Thus, in milk of an abnormally blue color,Braconnot detected a cryptogam to which Lamarck gave the nameof Byssus cceruleus. In other specimens of blue milk, Quidde,Fuchs, and Ehrenberg found a swarm of infusoria which they named,accordingly, Vibrio cyanogens. Yellow milk was found by Fuchsand Verheyen to abound in a yellow vibrion, Vibrio alleges that both these vibriones are present in milkwhich shows a greenish tint. Dr. Percys Report to the New YorkAcademy of Medicine in 1858, ^On Swill Milky shows the pres-ence of spores in such milk when drawn, and the growth of my-celium within twenty-four hours thereafter, though the liquid hadstood in a well-corked bottle in the interval. This report shows,further, the tendency of such milk to induce severe and even fataldisorders of the digestive organs of infants fe
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjectmicroscopy