THE Microscope. 69 
gone to Spain, and that his name in Spanish is Puerta. Puerile 
it should be. Perhaps, however, these bacilli are the active 
agents in producing the effects of this powerful drug. Who 
knows ? 
Amoné the articles in our possession for publication are 
“Measurements of Blood Corpuscles,’” giving results of over 
10600 measurements of corpuscles of different animals; “ The 
Laughable in Science,” an exceedingly interesting account of 
the humorous things found in science; “ Results of Microscopi- 
cal Research,” containing recent discoveries in this department 
of work. We give more “ Original Matter” in this journal than 
is found in any other microscopical journal in the world. 
A NuMBER of new “Exchanges.” Notify us when your 
notice has served its purpose, and thus make room for others. 
We cannot devote over one page to this purpose. Some have 
sent us notices with no signatures. Be brief and concise. 
Dr. A. Y. Moors is the first again; this time to stain Am. 
pellucida. We shall soon expect to see a slide of this diatom, 
prepared by him, with the lines one color and the interspaces 
another. 
Is Tors ParacrarH Markep? Then consider it a polite in- 
vitation to send us one dollar for 1886. One dollar is not so 
very large to you; in the aggregate itis everything to us. Please 
aid us by promptly responding to this call. 
—_ a0 
REVIEWS. 
RECHERCHES ANATOMIQUES SUR LES ORGANES VEGETATIFS DE 
L Urrica pioica L. Par A. Gravis. 4 to. pp. P. 256. 23 plates, 
Bruxelles. 1885. 
This is a most elaborate work, and the plates, as is usually 
the case in European monographs, are of the best. The author 
states that he has made 15,000 sections of Urtica dioica alone; 
and he not only studied this plant but all its relations as well. 
He has made a complete study of the stem, the leaf, and the 
root from the first appearance of these organs to their complet- 
est development, no region being neglected. The author is of 
the opinion that anatomical and embryological characters will 
