2eQ ANNALS NEW YORK ACADEMY OF SCIENCES 



in isolated settlements — even to furnishing them amusements in the way 

 of motion-picture shows — and dealing with Indian tribes to the extent of 

 inducing the men to work ; all these and other institutions and functions 

 being either owned or controlled by the Eeclamation Service of the United 

 States Government. 



To carry on the various projects requires the expenditure of some 

 twelve million dollars annually, or about a million a month. When the 

 score or more of projects have all been completed, homes on the farms 

 and in the villages of the arid West will be provided for more than two 

 million families. 



The fallacy of dry farming was clearly shown by the loss of about one 

 farm crop in three through that practice. 



The lecture was splendidly illustrated with polychrome slides of very 

 characteristic western views. 



Owing to unpleasant weather, only 75 persons attended. These were 

 further entertained by Mr. XewelFs informal replies to questions from 

 members and visitors after the formal presentation of the subject. 



The Section then adjourned. 



Charles T. Kirk, 



Secretary. 



SECTION OF BIOLOGY 



10 February, 1913 



Section met at 8 :15 p. m., Dr. F. A, Lucas presiding. 



The minutes of the last meeting of the Section were read and approved. 



The following programme was then offered : 



Louis Hussakof, The Pleuracanthid Sharks with Special 



Eeference to the Cranium. 



John T. Nichols, Correlation of Body- and Fin-form with 



Habit in Eecent Fishes. 



William K. Gregory, Locomotive Adaptations in Fishes Illus- 

 trating "Habitus" and "Heritage." 



Summary of Papers 



Dr. Hussakof exhibited a life-sized model of Pleuracanthus, based on 

 the material figured by Brongniart and Fritsch, together with original 

 material and wax models of the skulls of the allied Diacranodus from the 

 Permo-Carboniferous of Texas. The speaker pointed out that Cope and 



