862 



SCIENCE 



[N. S. Vol. XXV. No. 648 



Physiology in the Laboratory.' (A discussion of 

 this paper is especially invited.) 



C. 0. Gdtheie : ' Results of Eemoval and Trans- 

 plantation of Ovaries in Chickens.' 



K. S. LiiiiE : ' The Influence of Electrolytes on 

 the Osmotic Pressure of Colloidal Solutions.' 



THUESDAT, MAT 9 



Joint session with the American Society of 

 Biological Chemists. 



Reid Hunt : ' Notes on the Thyroid.' 



Walter Jones : ' On the Occurrence of Fer- 

 ments in Embryos.' 



C. G. L. Wolf and Philip A. Shaffeb: ' Metab- 

 olism in Cystinuria.' 



0. G. L. Wolf : ' Protein Metabolism in the Dog.' 



A. B. Macallum and 0. C. Benson : ' The Com- 

 position and Character of the Hourly Excretions 

 of Urine.' 



S. P. Beebe : ' The Parathyroid Gland.' 



V. C. Vaughan : ' Proteid Susceptibility and 

 Immunity.' 



Waldemab Koch: 'The Distribution of Sul- 

 phur and Phosphorus in the Human Brain.' 



A. D. Emmett and William J. Gies : ' On the 

 Composition of Collagen and the Chemical Rela- 

 tion of Collagen to Gelatin.' 



Lafayette B. Mendel: 'Embryo-chemical 

 Studies.' 



Joint session with the Association of American 

 Physicians. 



Symposium upon acidosis. The discussion was 

 introduced by Dr. E. P. Joslin, representing the 

 Association of American Physicians, and Dr. Otto 

 Folin, representing the American Physiological 

 Society; and followed by a discussion, in which 

 Dr. Graham Lusk, Dr. Lafayette B. Mendel, Dr. 

 A. E. Taylor, Dr. L. F. Barker, Dr. W. S. Thayer 

 and others took part. 



The following resolutions were adopted by 

 the society, in association with the Amer- 

 ican Society of Biological Chemists at the 

 joint session : " This society approves of the 

 movement represented by the Committee of 

 One Hundred of the American Association 

 for the Advancement of Science to increase 

 and coordinate the present activities of the 

 federal government in matters pertaining to 

 public health. This society therefore urges 

 upon the President of the United States and 

 members of Congress the favorable considera- 

 tion of such legislative measures as are best 

 adapted to secure this result." 



The society decided to hold the next annual 

 meeting in Chicago during Convocation week, 

 December, 1907. 



Lafayette B. Mendel, 



Secretary 



THE BIOLOGIOAL SOCIETY OF WASHINGTON 



The 4:29th meeting was held April 6, 1907, 

 with President Stejneger in the chair. 



Under short notes Dr. Hopkins called atten- 

 tion to the influence of the recent abnormal 

 warm weather on the opening of the buds of 

 certain forest trees, stating that certain early 

 varieties of American linden trees on B 

 Street, southwest, were fourteen days earlier 

 this spring than last, but that the buds on 

 the late varieties of the same species were not 

 influenced, thus indicating a method of loca- 

 ting varieties of forest trees and the deter- 

 mination of the range of a given periodical 

 phenomenon within a species as influenced by 

 normal and abnormal seasonal conditions. 

 Phenological data collected during the past ten 

 years show quite conclusively that the aver- 

 age time of the beginning of seasonal ac- 

 tivity of certain species and varieties of in- 

 digenous plants and animals, that remain dor- 

 mant during the winter, may be utilized as 

 an index or guide to the dates each season 

 when, at different latitudes and altitudes, the 

 conditions are most favorable for action 

 against certain insect pests, plant diseases, 

 etc. The same records show that there is 

 a normal variation in a given phenological 

 phenomenon of about four days for a differ- 

 ence of four hundred feet of altitude and four 

 days for a difference of one degree of latitude, 

 thus it has been shown that within a state 

 like West Virginia there may be a variation 

 of thirty days on the same degree of latitude, 

 due to a difference of 3,000 feet altitude, 

 which is equivalent to a difference of about 

 seven degrees of latitude at the same altitude. 

 Thus, the normal variation between two 

 localities may be calculated approximately, 

 but the response of life activity in certain 

 index forms of plants and animals, to general 

 and local climatic and other influences, will 

 not only give quite positive evidence of the 

 actual variation between localities, but will 



