August 19, 1921] 



SCIENCE 



157 



B. Weird which was the principal feature of the 

 afternoon session. 



The following program was rendered: 



President's address: The relation of chemical 

 training to industry: W. H. Coolidge. 



An experiment in mental and physical correla- 

 tion: J. J. TiGERT, University of Kentucky, Lex- 

 ington, Ky. By title. 



Summary of the Thurstone intelligence tests for 

 college freshmen and high-school seniors: Walter 

 E. Ervin, Centre College. The average of 58 

 freshmen tested was 83, ranging from 30-39 (one 

 student) to 150-159. The author remarks that 

 such tests are not conclusive as to the mental equip- 

 ment of any boy or girl, but they are helpful by 

 placing the student in the school with more fair- 

 ness. 



The tragedy of the passenger pigeon: George 

 D. Smith, Eastern Kentucky State Normal School. 

 The author described his observation of the whole- 

 sale destruction of the pigeons in their roosting 

 place in a marsh, at night, by persons who came 

 for miles around for this purpose, and hauled 

 away the dead birds by the wagon load. This 

 incident seems to have been one of the final stages 

 in the extermination of the pigeon. 



The last warning of the rattler: George D. 

 Smith, Eastern Kentucky State Normal School. 

 The paper describes a fight which the author ob- 

 served between a diamond rattlesnake and a large 

 blue racer. The fight was long and fierce and 

 ended in the destruction of the rattler. During 

 the fight the racer is badly bitten by the rattler, 

 hastens to a patch of weeds and bites several of 

 the weeds, sucking out the juice. He then hastens 

 back to renew the combat. In the progress of the 

 fight the juice of the weed was applied a second 

 time and the racer rushed back to renew the 

 fight as before. 



Absorption in tlie corn grain: Charles A. 

 Shull, University of Kentucky. 



Orthogenesis in the Membracid<B: W. D. Funk- 

 houser. University of Kentucky. The attempt to 

 explain the remarkable developments of the pro- 

 notum in the family Membracidse by natural se- 

 lection fails in the cases of the most bizarre and 

 curious tropical forms. Poulton and others have 

 suggested explanations based on protective colora- 

 tion and mimicry which must be carried into the 

 realm of speculation when applied to certain exotic 

 species. Certain genera, including Heteronotus, 

 Centrotus^ Fyrgonota and Spongophorus, seem to 



show very regular pronotal development along 

 definite lines when traced from the more general- 

 ized to specialized forms. This is particularly 

 true of the length and position of the supra- 

 humeral, dorsal and posterior horns. These devel- 

 opments seem in many cases to be entirely with- 

 out regard to utility and even to threaten the 

 existence of the species. In comparison with 

 the classical example of the Irish elk, many spe- 

 cies of Membracidas seem to show even greater 

 evidence of orthogenesis. 



The progress of KentucTcy in the second decade 

 of tlie twentieth century: Edwabd Tuthill, Uni- 

 versity of Kentucky 



Kentucky petroleum problems: Lucien Beckner. 

 Kentucky offers many problems in petroleum ge- 

 ology which the consulting geologist and the ge- 

 ologist of the private company seldom have time 

 to solve. The larger anticlines, the Cincinnati, 

 north and south, and the Kentucky, east and west, 

 present their peculiar characters that are not yet 

 well understood. The author points out many 

 problems which, could they be solved, would save 

 the useless expenditure of thousands of dollars 

 and probably result in the production of much 

 wealth. 



The first food of young black bass: H. Garman, 

 Experiment Station, Lexington, Ky. A study of 

 the food by use of the microscope on the stomach 

 contents of both large- and small-mouthed black 

 bass, taken from the State Hatchery pools at 

 Forks of Elkhorn, Kentucky, showed that the 

 dietary of both species during the first five weeks 

 of their active lives consists of small crustaceans 

 belonging to the orders Cladocera and Entomo- 

 straca, and of insect larvje belonging to the dip- 

 terous family Chironomidfe. The percentages of 

 the different kinds of food were determined and, 

 as far as practicable, an exact determination was 

 made of the crustacean species most prevalent in 

 the dietaries. The purpose of the study was to 

 learn just what food was most relished and how 

 it might be influenced artificially for the benefit 

 of young fishes produced at the hatchery. 



The tolerance of hogs for arsenic: D. J. 

 Healy and W. W. Dimock, Experiment Station, 

 Lexington. There is a popular belief that hogs 

 are not very susceptible to arsenical poisoning and 

 an examination of the literature failed to dis- 

 close a record of arsenical poisoning in hogs. 

 The results of four tests made by administering 

 arsenic trioxid axe given. The total of 11 shoats 

 received large doses of arsenic trioxid; in some 



