VoL. XXXIV, NO. 405” x SEPTEMBER, 1900 - E: 
NATURALIST == 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE 
CONTENTS 
I. Unusual Modes of Breeding and Development among Anura |© ise 
LILIAN V. SAMPSON 
IL On the Intestine of Amia Calva... -. WILLIAM A, HILTON 71 7 
III. Studies in Cranial Variation Dr. FRANK RUSSELL 737 
Iv. certe North-American 1 Invertebrates. xu The Actini- 
V. Mendes saves ixi: General Biology, Woods Holl Lectures for. 
1899, Animal and Plant Colors rs, The Plankton of the Elbe — Zoólogy, 24 
New Edition of * Wilson's Cell,' 2 Intracellular Canals in Ganglion Cells, 
biata Anatomy, Elementary Physiolog : dan and- 
Ev Fishes, Part IV, The Monasci 
| tion, Relation between Nervous and Gland: |; 
: BOSTON, USA. tim = 2o E 
GINN & COMPANY, PUBLISHERS a: 
