70 7 THe Microscope. 
furnish the same basis of classification among plants as it has 
already done among animals. 
SoME NEw AND RARE DiAtToms. By W. C. Walker, Utica, N. Y., 
and H. H. Chase, Geneva, N. Y. 1886. 
This is Part I of a series of papers that will be issued four 
or five times a year. There are eight pages of the text and two 
photographic plates. We highly commend this enterprise and 
sincerely hope it will receive the support it deserves. But there — 
shold be a great improvement in future numbers in the original 
drawings of these new and rare forms, a more careful and accu- 
rate use of the pen. The edition is limited and can be obtained, 
by early application to either author, for one dollar a part. 
THE ROTIFERA ; OR WHEEL ANIMALCULES. By C. T. Hudson,and P. 
H. Gosse. 1886. London. W. P. Collins, 157 Gt. Porland St., 
London, England, general agent, 
The book, now being issued in parts, will be illustrated with 
original drawings from life. There are to be six parts, and each 
part will contain five folio plates of colored drawings. Mr 
Collins will send a prospectus to all interested parties. 
EIN PTOMAIN AUS GIFTIGEM KASE. By Prof. V. C. Vaughan, Uni- 
versity of Michigan. 1886. 
The above is a reprint, from ‘‘Zeitschrift fiir Physiologische 
Chemie,” of the work done by our colleague, Dr. Vaughan. 
We knew very well that this work was recognized in our own 
country as entirely original with Prof. Vaughan, and it is cer- 
tainly pleasant, to say the least, to find that Hoppe-Seyler, of 
Strassburg, thinks equally well of the work there. 
THE CENTURY. 
We said in our February number that this journal always 
contained “ instructive and entertaining reading ”’ and so it con- 
tinues to do only in an increasing manner. The “Memoranda 
of the Civil War” are especially interesting in the March 
number. 
THE PUBLISHED WRITINGS OF ISAAC LEA, LL. D. With portrait 
etching, pp. 280. By N. P. Seudder. 1885, Government Print- 
ing House. 
THE MICROSCOPE IN MEDICAL DIAGNOSIS, pp. 1l. By H. D. Walker, 
M. D., Franklinville, N. Y. 
