1897.] Recent Literature. 313 
On table 28 there are two figs. X, one of which is undescribed. On 
tables 12, 19, 20, 55, etc., some of the figures have been accidentally 
transposed. Rights and lefts have also been transposed by the litho- 
grapher in some cases, as on table 37 II. There are occasional mis- 
prints as “ stichcultur ” for “strichcultur ” in tables 41, 43, 44, 56, ete. 
More important is the fact that several scales of magnification are used 
in representation of the individual bacteria instead of the generally 
agreed upon magnification of 1,000. The Atlas is very attractive 
and cannot fail to be of much use. What of the text? This consists 
of 448 12 mo. pages on good paper, in clear Roman type easy to read, 
very systematically arranged, and with a good index at theend. The 
greater part of the book is devoted to the detailed description of the 60 
species, and much of this part the reviewer has only dipped into here 
and there. How generally well this part has been done, or how many 
are the sins of omission and commission can be told only after the book 
has been used, or by those specially familiar with given organisms. It 
seems to be a good piece of work. Usually, each organism is described 
with reference to the following particulars: scientific name, common 
name, synonyms, literature, microscopic appearance, spores, motility, 
affinity for stains, need of oxygen, rapidity of growth, gelatine plates 
(a. natural size, b. magnified 50 times, 70 times, etc.,), gelatin stab, 
agar plates (a. natural size, b. magnified 50 times, etc.,) agar stab, agar 
streak, boullion, milk, potato, conditions of spore formation, vitality, 
chemical activities, occurrence, nerve pathogeneis, nearly related species. 
This descriptive part of the book is preceded by a general discussion of the 
subject of bacteriology, which certainly deserves praise. In a space of 95 
pages Dr. Lehmann has brought together the principal facts respecting 
the morphology and biology of this group of organisms. His statements 
are clear, exact, and in the main happy, whether or not one agrees with 
all of his propositions. One need not expect to find entire up-to-dateness 
in any book. No book can take the place of the current journals, least of 
all in a rapidly growing science, but this one is so very good that it de- 
serves to find its way speedily into every laboratory. All the way 
through, in what is omitted as well as in what is brought forward promi- 
nently, there is not only evidence of a wide acquaintance with literature 
and of mature judgment, but also proof that the authors have become 
familiar with all the details of their subject by long experience in the lab- 
oratory. Following the descriptive portion of the book is a useful “ An- 
hang ” giving the briefest direction for the microscopic examination of 
bacteria, staining, preparation of culture media, ete. This will prove 
helpful to beginners. . Finally at the end of the book is a folded sheet 
