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absolute alcohol acetic acid agar alkaline anaerobic bacteria animals apparatus bacillus Bakt balsam bell jar blood blood films boiling bottle bouillon camera cent Centralblatt chloride colonies color containing cotton plug cover cover-glass crystals culture diameter dilute distilled water drawers drop eosin examination film filter fixed flame flask fluid formalin gelatin Ginkgo glass tube glycerin grams granules ground glass heat hydrogen immersion inches incubator inoculated laboratory large number lateral tube light medium method methylen blue microscope microtome milk minutes mixture mother cell mounted nitric acid nucleus object obtained organisms oxygen paraffin Parasit photographed piece pipette placed plants plate pollen-tube potassium precipitate preparations pyrogallol Raymond Pearl reagent removed salt saturated sealed sections Separates of Papers slide solution species specimen spermatozoids stain sterile stopper surface temperature test tube tion tissue University urine washed xylol
Page 1868 - is the title of the latest publication issued by the Experiment Farm of the North Carolina State Horticultural Society at Southern Pines, N. C. This book...
Page 1676 - BLOOD, Examination of. DA COSTA. Clinical Hematology. A Practical Guide to the Examination of the Blood, with Reference to Diagnosis.
Page 1856 - Some devices for the cultivation of anaerobic bacteria in fluid media without the use of inert gases (Journ.
Page 2103 - Wirsung, due to pancreatic calculi, to biliary calculi in the terminal part of the common bile duct, or to carcinoma invading the head or body of the gland. Duct obstruction may be followed by the invasion of bacteria, which take part in the production of the resulting lesion. 3. Ascending infection of the unobstructed duct of Wirsung may follow an acute lesion of the duodenum or of the bile passages, and may cause chronic inflammation.
Page 1671 - ... the slide. The cigarette-paper prevents the fibers of the filter-paper from adhering to the section and marring its appearance. 6. Cover the section sticking to the slide with absolute alcohol for about thirty seconds and drain. 7. Flow over the section and the adjacent surface of the slide a very thin solution of celloidin in equal parts of absolute alcohol and ether. Drain off immediately. The celloidin should form a coating so thin as to be invisible. 8. Flood the slide with ninety-five per...
Page 2031 - milk, when secreted by the gland of the healthy udder, is sterile. It may, however, immediately become contaminated by the bacteria which are normally present in the smaller ducts of the udder." However, " the bacteria so far found in the interior of the udder apparently do not affect milk seriously. This, however, does not preclude the possibility that forms more injurious to milk may invade the udder.
Page 2029 - ... the ineffectual attempts to obtain milk in commercial quantities uncontaminated by bacteria. At the same time it has been but very recently that investigations as to the number and nature of the organisms that gain access to the milk through their localization and multiplication in the milk ducts, have been made.
Page 1777 - ... occurring in Zamia when the spermatozoids pull away from each other and round up so that they occupy less space, and have their original location marked by the surrounding plasma membrane of the pollen tube. The writer believes that it may be safely concluded that Ginkgo corresponds with Zamia and Cycas in the metamorphosis of the entire cell, and, as stated above, believes that this method of differentiation is in harmony with what is found in Marsilia, and probably in other ferns and lower...