370 



SCIENCE 



[N. S. Vol. XXXIX. No. 1001 



pupil is entitled to ' ' follow thru ' ' in his mental 

 processes. 



III. Life is too short for these results to be ac- 

 complished by the laboratory alone or chiefly. 

 The value of laboratory work is not in the zoolog- 

 ical information gained by means of it. Its chief 

 value is to enable the pupil to appreciate how the 

 information got into the books, to give him skill in 

 working out things for himself, and to use the in- 

 creased interest he has in handling objects rather 

 than in reading descriptions of them. It appears 

 to me that about one half the time should be given 

 to laboratory and field work, with more emphasis 

 on the latter than is usual, and one half to class 

 room, library and museum. I conceive that very 

 much more use should be made of the library and 

 somewhat less than is customary of the text or the 

 lecture. 



IV. I suggest the following for guidance in the 

 selection of forms to be used in the laboratory 

 study. They should be from those groups that 

 have most human meaning; that are most com- 

 mon in the environment of the pupil; that have 

 fewest disagreeable and repelling points; that il- 

 lustrate best the great underlying processes and 

 relations which we desire the pupil to get. Such a 

 course might very appropriately emphasize the 

 Protozoa, the Worms, the Mollusks, the Arthro- 

 pods and the Vertebrates, in the laboratory and 

 the field. The library and the museum may very 

 well supply such synoptic view of the other groups 

 as is needed in the first course. 



It is quite difficult but quite important to re- 

 member that we are concerned to develop human 

 beings and not in a mere logical display of zoolog- 

 ical material. There is no necessary correlation 

 between the two processes. 

 Note on the Present Status of the Gipsy Moth 



Parasites in New England: L. O. Howard. 

 Some Notes Regarding the Natural History of the 



Mole Cricket: E. L. Worsham. 

 The Jassidce of Maine and their Bearing on the 



Vistriltution of this Group in America: Her- 

 bert OSBOEN. 



Collections during the summer of 1913 greatly 

 extend the records of the species in this family for 

 Maine. For the most part these simply extend 

 known range from adjacent localities, but in some 

 cases from such distant points as Michigan, Iowa 

 and even the Eocky Mountain region. 



H. V. Neal, 

 Secretary 



Tufts College, Mass. 



SOCIETIES AND ACADEMIES 



THE AMERICAN PHYSICAL SOCIETY 



A REGULAR meeting of the Physical Society was 

 held at Columbia University, New York, on Feb- 

 ruary 28, when the program was as follows: 



' ' Eadiation Constants of a Nitrogen-filled 

 Tungsten Lamp, ' ' by W. W. Coblentz. 



"The Villari Critical Point in Ferromagnetic 

 Substances," by S. R. Williams. 



"Motion of a Radiating Oscillator," by E. B. 

 Wilson. 



"A Method of Rapidly Extracting, Purifying 

 and Compressing Radium Emanation, ' ' by William 

 Duane. 



' ' On the Asymmetric Distribution of Velocities 

 of Photo-electrons from Platinum Cathode 

 Films," by Otto Stuhlmann, Jr. 



"On the Density of Radiant Action," by Wil- 

 liam Duane. 



' ' Secondary Electron Emissions from a Hot 

 Cathode Caused by Positive Ion Bombardment, ' ' 

 by Irving Langmuir. 



A. D. Cole, 

 Secretary 



THE AMERICAN PSYCHOLOGICAL SOCIETY' 



The New York Branch of the American 

 Psychological Association met in conjunction with 

 the Section of Anthropology and Psychology of 

 the New York Academy of Sciences, at Princeton, 

 on February 23. The program was as follows: 



"Some Tests of Efficiency in Telephone Opera- 

 tors," by Dr. H. C. McComas. 



' ' Transfer and Inference in the Substitution 

 Test," by Professor H. A. Ruger. 



"A Comparison of the Effects of Strychnine 

 and Caffeine on Mental and Motor Efficiency, ' ' by 

 Dr. A. T. Poffenberger. 



"A Comparison of Stylus and Key in the Tap- 

 ping Test," by Dr. H. L. Hollingworth. 



Inspection of the Psychological Laboratory of 

 Princeton, and informal reports of work in prog- 

 ress. 



"An Experimental Critique of the Binet-Simon 

 Scale," by Carl C. Brigham. 



' ' The Work Curve for Short Periods of Intense 

 Application," by Professor R. S. Woodworth. 



"Recall in Relation to Retention," by Dr. 

 Garry C. Myers. 



H. L. Hollingworth, 



Secretary 



