CONTENTS. 



PAGE. 



The Relations of Some Carboniferous Faunas ; by George H. 



Girty i 



The Blood-vascular System of the Loricati, the Mail-cheeked 



Fishes ; by William F. Allen 27 



The Gymnotidae ; by Carl H. Eigenmann and David Perkins Ward 1 59 

 Declinations of Certain North Polar Stars Determined with the 



Meridian Circle ; by Harriet W. Bigelow . . . . 1 89 



The Cambrian Fauna of India ; by Charles D. Walcott 



On Basic Substitutions in the Zeolites ; by F. W. Clarke . 



Simultaneous Joints ; by George F. Becker 



A Feature of May6n Volcano ; by George F. Becker , 



The Linear Force of Growing Crystals ; by George F. Becker 



and Arthur L. Day 



An Interesting Pseudosolid ; by George F. Becker and Arthur L 



Day 



The Vital Fabric of Descent ; by 0. F. Cook . 



The Foliaceous and Fruticose Lichens of the Santa Cruz Fenin 



sula, California; by Albert W. C. T. Herre . 

 Index .......... 



251 



257 

 267 



277 



2S3 



2S9 

 301 



325 

 397 



