Vol. XXXVIII, No. 454. 



October, 1904 



THE 

 AMERICAN 

 NATURALIST 



A MONTHLY JOURNAL 

 DEVOTED TO THE NATURAL SCIENCES 

 IN THEIR WIDEST SENSE 



CONTENTS ^^^^ 



I. The Anatomy of the Coniferalee (concludBd) PEOF- D. P. PENHALLOW 691 



n. 8tndieiofthePlantCeU.-IV DB. B. M. DAVIS m 



QI- The Affinities of the OphiogloHaceae and MarsiUaceee PBOF. D. H CAMPBELL 761 



BOSTON, U. S. A. 



GINN & COMPANY, PUBLISHERS 



