LABORATORY SUPPLIES. 
In order to facilitate the study of Natural History in Ohio the de- 
partment has arranged to furnish such laboratory supplies as may be 
accessable in convenient sets adapted to college or high school or in- 
dividual use. The business will be conducted by Mr. C. J. Herrick, 
while the preparation of the material will be under the immediate direc- 
tion of the department. 
No. I. Lithological suite of 25 hand-samples of type rocks 
wdth accompanying thin sections and a lithological microscope 
manufactured expressly for the department, also apparatus for 
making thin sections by hand, _ _ _ _ $-7^ 00 
Lithological lathe (additional) - - - - - 50 00 
No. 2. Suite of stratified fvcks, 25 samples, accompanied by sections 
of the most important building stones and fossils typical of each 
rock and one of Bausch & Lombs’ model microscopes, com- 
plete, ‘1^65 00 
Sections of rocks or fossils will be made on application at a low 
rate. Other laboratory supplies will be secured and kept on hand as 
opportunity affords. Address C. J. Herrick, Granville, O. 
