/ 
OF 
V^\U■E1^§>\Ty , 
- EDITED BY . 
W. G. TIGH[T, M. S.y 
Department of Geology and Natural History. 
VOLUME V. 
WITH TWENTY-ONE PLATES. 
CONTENTS: 
I. Editor's Statement- i— — p. I 
II. Exchange List -p. 4-7 
III. Laboratory Notes — 
1. Germination of Phoenix dactylifera. Illustrated. 
CMrs. J. E. Dixson_ . _p. S-q 
2. Botanical Notes H. L. Jones p. ro 
3. A Convenient Injecting Apparatus. Illustrated. W. G. Tight-p. 11-13 
,4. A Simple Spirometer. Illustrated. W. G. Tight p. .14-15 
5. Notes from Physical Laboratories — i. An Instrument for Rap- 
idly Changing The Cell Arrangements of Large Batteries; 
2. A Simple Chronograph ; 3. Scale Divider; 4. An Elec- 
tric Couple for Projection. , Plate B. A. D. Cole -p. 16-21 
&t A Specimen of Hesperophona vespertina. W. G. Tight .p. 22-23 
IV. Communications — 
I. The Waverly Group. W. F. Cooper _p. 24-32 
■ 2. Tabulated List of Fossils known to Occur in the Waverly of 
Ohio. W. F. Cooper — p. 33-34 
3. The Central Nervous System of Rodents. Preliminary Paper. 
Plates I-XIX, C. L Herrick and W. G. Tight-— PvJS. ^b 
GRANVILLE, OHIO, JUNj:, 1890. 
