Vol. XXXVIII, No. 453. 



September, 



THE 



AMERICAN 

 NATURALIST 



A MONTHLY JOURNAL 

 DEVOTED TO THE NATURAL SCIENCES 

 IN THEIR WIDEST SENSE 



CONTENTS 



I. Some Observations on Eorquals off southern Newfoundland- DR. G. M- ALLEN 

 II. Physical Imitations of the Activities of Amoeba. PROFESSOR H. S- JENNINGS 



III. The Influence of the Mutations of the Pleistocene Lakes upon the present Dis- 



tribution of Cicindela PROFESSOR H. F. WICKHAM 



IV. A simple Apparatus for aerating Liquid Solutions . . . S. 0- MAST 

 V. Spire Variation in Pyramidula aiternata . ■ FRANK COLLINS BAKER 



VL Fossil Plumage DR. C- R EASTMAN 



Vir Notes and Literature Zoology An Ii ro 1. 1 n \ 



BOSTON, U. 8. A. 



GINN & COMPANY, PUBLISHERS 



