514 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
of acid. It is pathogenic to rabbits and white rats, but not to guinea- 
pigs (in small doses), nor to white mice. 
Plate-cultivations were made from sputum of 52 different cases, and 
it is important to note that in all these instances there developed colonies 
indistinguishable from those of the Fraenkel-Weichselbaum pneumo- 
coccus, but which should be classed with that large family of cocci 
inhabiting the mucosa, the most important representative of which is 
the diplococcus of pneumonia. 
Besides these mucosa-cocci the author describes 21 kinds of bacilli, 
10 kinds of cocci, and 3 fungi. 
Bacteria and their Products.* — This volume of about 400 pages, 
which are followed by an appendix giving a short account of the bacte- 
riological methods and a diagnostic description of the commoner bacteria, 
and illustrated by twenty photomicrographs, is described by the author. 
Dr. G. S. Woodhead, as “ an attempt to give some account of the main 
facts of bacteriology and of the life-history of bacteria,” with special 
reference to fermentation, putrefaction, and disease. 
From a careful perusal of the work we can recommend it very 
heartily to all who are desirous of learning the principles of bacte- 
riology and ascertaining the facts on which these principles are founded. 
The style is extremely clear and easy of understanding. 
If any exception can be taken to the book, it is the illustrations. 
Photomicrographs, unless very good indeed, are, in our opinion, very 
bad for teaching purposes. 
Billroth, Dr. Th. — Ueber die Einwirkungen lebender Pflanzen u. Thierzellen auf 
einander. (On the Reciprocal Action of living Animal and Vegetable Cells.) 
Vienna, Alfred Holder, 1890, 43 pp. 
Burgi, Dr. Einrigo. — Contribnto alia conoscenza dei caratteri biologicbi e 
patogeni del Bacillus pyogenes foetidus. (Contribution to onr knowledge of the 
Biological and Pathogenic Characters of Bacillus pyog. foetidus .) 
Pisa, Mariotti, 40 pp. 
Charrin, A. — Toxicite du serum. (Toxicity of Serum.) 
Compt. Bend, de la Sue. de Biol., 1890, pp. 695-6. 
Fokker, A.-P. — Ueber backterienvernichtende Eigenschaften der Milch. (On the 
Bactericidal Properties of Milk.) Zeitschrift fur Hygiene, IX. p. 89. 
Kirchner, M. — Die Bedeutung der Bakteriologie fur die offentliche Gesundheits- 
pflege. (The importance of Bacteriology in Public Hygiene.) 
(Berliner Klinik, 33 Heft.) 
Berlin, Fischer’s Med. Buchh., 1891, large 8vo, 36 pp. 
Laurent, E. — Experiences sur la reduction des nitrates par les vegetaux. 
(Experiments on the Reduction of Nitrates by Plants.) 
Annal. de I’Instit. Pasteur, 1890, No. 11, pp. 722-44. 
Laver an, — . — An sujet des alterations des globules rouges du sang qui peuvent 
etre confondues avec les hematozoaires du paludisme. (On the Alterations of 
Red Blood- corpuscles which can be confused with the Hsematozoa of Marsh 
Fevers.) Compt. Bend, de laSoc. de Biol., 1890, No. 39, pp. 733-5. 
Muller-Thurgau, H. — Ueber den Ursprung der Weinhefe. (On the Origin of 
Wine-ferment.), Weinbau und Weinhandel, 1889, Nos. 40 & 41. 
Phisalix, G. — Etude experimental du role attribu aux cellules lymphatiques 
dans la protection de l’organisme contre l’invasion du Bacillus anthracis et dans 
l’immunite acquise. (Experimental study of the part attributed to lymphatic 
cells in the protection of the organism against the invasion of Bacillus anthracis 
and in acquired immunity.) Compt. Bend, de V Acad, des Sciences, CXI. p. 685. 
Contemporary Science Series, London, Walter Scott, 1891. 
