1884 | Microscopy and Histology. 329 
An obvious hypothesis is that the protoplasmic network forms the 
hyaline substance, and then out of this manufactures the gran- 
ules, which are, as we know, converted during secretion into some 
one or more of the organic bodies of the fluid secreted. * = 
The network appears to be the result of the two-fold tendency of 
the protoplasm to form fibrille, and to store up substances 
within its grasp; in most cases it is obviously not constant in 
rm, but is continually altering the arrangement of its bars and 
the size of its meshes. This is especially distinct in mucous cells 
in which, during secretion, numerous fresh connecting fibrillz are 
formed.”—Froc. Camb. Philos. Soc., Vol. v. 
PROCEEDINGS OF THE AMERICAN SOCIETY OF Microscopists. 
—This volume of 275 pages contains the proceedings of the sixth 
meeting of this active society, which was held at Chicago, Aug. 
Specially microscopical articles were the following: College 
microscopical societies, by Sarah F. Whiting; the relation of 
*. M. Hamlin; preparing and mounting bacteria, by T. J. 
Burrill ; the microscope in the detection of lard adulterations, by 
- Belfield; a new method of dry mounting, by A. H. Chester; 
a New form of microscope stand with concentric movements, by 
+ D. Cox; a critical study of the actionof a diamond in 1uling 
eS upon glass, by W. ‘A. Rogers; cataloguing, labeling, and 
Storing microscopical preparations, by S. H. Gage. There are 
also reports of the committee on eye-pieces, micrometry, centi- 
bi ike scale A, 1882,a study of centimeter, marked A, prepared 
ae U. S. Bureau of Weights and Measures, by W. A. Rogers, 
nd rules for the control of the standard micrometer. 
“The MicroscopicaL BuLLETIN.” —The first number of the 
ong Microscopical Bulletin, to be published bi-monthly by James 
pubes & Co., Philadelphia, appeared in December. lis 
the ication is designed to answer the question, “ What’s new in 
double osoPical line?” The first number consists of eight 
Pe cai -column octavo pages, and contains the more interesting 
is 188>. of Professor Duncan’s address before the Roy. Mic. S0; 
ege a short essay on pathogenic bacteria, a description of 
slide-box, and other microscopic accessories. 
