CONTENTS 



Page. 



Interrelations of the Fossil Fuels, III. By John J. Stevenson. i 



The Archaeological Significance of an Ancient Dune. By 

 Charles C. Abbott 49 



American Sanitation in the Philippines and its Influence on the 

 Orient. By Victor G. Heiser 60 



A Critical Survey of the Sense of Hearing in Fishes. By G. 

 H. Parker 69 



The Syriac Dialogue " Socrates." By Wm. Romaine Newbold. 99 



Biochemical Studies of the Pitcher Liquor of Nepenthes. By 

 Joseph Samuel Hepburn 112 



Twin Hybrids from Crosses of (Enothcra lamarckiana and fran- 

 ciscana with QI. pycnocarpa, in the F^ and Fo. By George 

 F. Atkinson 130 



The Art of George Catlin. By Edwin Swift Balch 144 



Parasitism among the Red Algae. By William Albert 

 Setchell 155 



An Annotated Translation of the Part of Schweinitz's Two 

 Papers Giving the Rusts of North America. By J. C. Arthur 

 and G. R. Bisby 173 



A Study of Some Ant Larvae, with a Consideration of the Origin 

 and Meaning of the Social Habit among Insects. By Wil- 

 liam Morton Wheeler 293 



Development of Magnetic Susceptibility in Manganese Steel by 

 Prolonged Heat Treatment. By Charles F. Brush 344 



Preliminary Notes on Some New Species of Agarics. By Geo. 

 F. Atkinson .' 354 



The Genus Galerula in North America. By Geo. F. Atkinson. 357 



Organization, Reproduction and Inheritance in Pediastrum. By 

 R. A. Harper 375 



Lighting in its Relation to the Eye. By C. E. Ferree and G. 



Rand 440 



iii 



