THe Microscope. 167 
plates colored by hand, will soon become as valuable as it will 
be rare. 
Inuusions: A Psychological Study. By James Scully. Complete in 
two parts. Part first. Price, 15 cents. J. Fitzgerald, publisher, 
20 Lafayette Place, New York. 
The present work is strictly popular in its character, and 
gives a very clear insight into the curious phenomena which 
occupy the disputed borderland lying between entire sanity of 
mind and insanity. 
THE CENTURY. 
The July number of this welcome journal is on the table, 
and we notice a number of good things in store for us.  Per- 
haps none of the articles will be more generally read than the 
one telling of the object, origin, growth, and disbanding of the 
Ku Klux Klan. The interest in the serial ‘“* Dr. Sevier” is 
kept up. There is food for all from ‘‘ Academic Degrees” by 
President Woolsey, to “The Story of Myra” by Julia D. 
Whitaker. 
ADDITIONAL EXCHANGES, CONTINUED FROM LAST 
PAGE. 
(This is a very interesting column to those engaged in praetical work. Send 
on your notice and enter the list.) 
MPHIPLEURA PELLUCIDA or any other test diatom mounted in 
the new medium having refractive index of , 2.4 can be procured from 
H. H. CHASE, M. D., Geneva, N. Y. 
eee mounts of crystalized silver exchanged for other first-class 
mounts, by H. W. WESTOVER, M. D., St. Joseph, Mo. 
i WILL send a quantity of good diatomaceous material containing Baccil- 
aria Paradoxa—all living—in exchange for well mounted slides. JAS. 
C. LATHROP, Bridgeport, Coin. 
IVING or mounted red astasia hematoides (Euglena viridis) also Valoox 
and other choice Alge in exchange for Algae, fungi or infusoria. J. 
M. ADAMS, Watertown, N. Y. 
ILL Exchange mounted slides of various crystals, diatoms, in situ, stel- 
lete hairs of plants and micio fungi, for other good slides or material. 
JAMES E. WHITNEY, Rochester, N. Y. 
A'THOLOGICAL, Histological and other well mounted slides will be ex- 
changed for mounted specimens of iuterest. Lists furnished on applica- 
tion. D. E. HAAG, M. D., Liberty Center, Henry County, Ohio. 
OULD like to exchange a 1-6 objective, 160°, adjustable, for a lower 
power. A. Y. MOORE, 89 Prospect street, Cleveland, Ohio. 
