.) BULLETIN 



OK IHF 



Scientific Laboratories 



ti)EN|Ii)ON( UNl\7Ht^a)ITV, 



EDITED BY 



W. G. TICxHT, M. S., 



Department of Geology and Natural History. 



VOLUME V. 



WITH TWENTY^NE PLATES. 



CONTENTS : 



I Editor's Statement p. i 



IL Exchange List ! - 



in. Laboratory Notes — 



I Germination of Phoenix (iactylifera. Illustrateti 

 Mrs. J. E. Dixson 



2. Botanical Notes H. L. Jones p. lo 



3. A Convenient Injecting Apparatus. Illustrated. W. Ci. Tight p. 1 1 11 



4. A Simple Spirometer. Illustrated, W. G. Tight p. i\ ' 



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. l(^2l 



6. A Sj>ecimen of Hesperophona vesportinn. W. ('.. Ti::;?T ~ "• *- 

 IV. Communications — 



1. The Waverly Grovip. W. F. Cooper...: p. -'}-.;-• 



2. Tabulated List of Fossils known to Occur in the Waverly of 



Ohio. W. F.Cooper P« 33-.^4 



3. The Central Nervous System of Rodents. Preliminary Paper. 



Plates I-XI\. C. L Ilerrick and W. G. Tight. - 



CRANVILLK, OHIO, JUNK, 1S90. 



