326 



SCIENCE 



[Vol. LV, No. 1421 



mere diminution with distance as is the ease in 

 figure 3. My impression is that if displace- 

 ment of an air particle oblique to the table be 

 resolved into tangential, and normal com- 

 ponents, it is in the phase changes of the 

 fonner (owing to a tangential slip, possibly 

 with vibration) that a clue to an explanation 

 may be looked for. 



Location of the ray of maximum amplitude. 

 Further experiments showed that if the pipe is 

 successively lifted above the table, the cor- 

 responding unique or highest maximum con- 

 tinually moves away from the origin into 

 greater x. So far as I have gone this position 

 {i. e., the position of the resonator on the 

 table) is reached when the corrected (asymp- 

 totic) ray from pipe to resonator makes an 

 angle of incidence of about 51° with the normal 

 to the table. The same rule holds for the 

 other corresponding maxima and minima. In 

 a raised pipe the unique maxima will thus be 

 found at 50 to 100 cm. outward from the 

 origin, below the pipe. The location of inter- 

 ferences by the method of the preceding para- 

 graph affords no clue. In any case it is aston- 

 ishing that a diagram such as figure 3 or 4, 

 should represent an actual distribution of 

 acoustic pressures, certainly of nodal intensity 

 on the table, whenever the organ pipe is 

 sounding. In fact, in the present research 

 which I have now been pushing for some time, 

 whatever one predicts fails and what one does 

 not expect comes out serenely. It will there- 

 fore be prudent to conclude with Newton, that 

 there are fits of easy reflection. 



Gael Baeus 

 Brown University, 



Peovidence, E. I. 



MEETINGS OF THE GENETICS 

 SECTIONS 



In accordance with proTisions made by tlie 

 American Society of Zoologists and the Botanical 

 Society of America, a joint program in genetics 

 was arranged and held in connection with the 

 recent meetings of these societies at Toronto. 

 This program occupied all of Wednesdaj', Decem- 

 ber 28, and the forenoon of Friday, December 30. 

 A. F. Blakeslee was elected to preside at the ses- 

 sions and L. J. Cole to act as secretary. The 



complete list of the papers presented will appear 

 in connection with the reports of the respective 

 societies. 



A committee, composed of L. J. Cole, E. A. 

 Emerson, H. S. Jennings, A. F. ShuU and G. N. 

 Collins, was appointed to formulate a plan of 

 organization for the Genetics Sections of the two 

 societies. The committee reported the following 

 articles of organization: 



Sesolved, That the Genetics Sections of the 

 American Society of Zoologists and the Botanical 

 Society of America organize for the purpose of 

 securing a closer coordination of genetic interests. 



The membership shall consist of those members 

 of the two societies wlio shall indicate their desire 

 to be affiliated with the Genetics Sections. 



The following officers shall be elected at each 

 annual meeting and shall take office at the close 

 of |:he meeting: 



1. A chairman to be chosen alternately from 

 the Zoological Section and from the Botanical 

 Section. 



2. A secretarj-, who may be chosen from either 

 section. 



3. A society representative, who shall be chosen 

 from the section other than that from which the 

 secretary is chosen. 



These officers shall constitute the executive com- 

 mittee of the Genetics Sections. 



In addition to his usual duties the secretary 

 shall, in consultation Avith other members of the 

 executive committee and with the secretaries of 

 the societies, arrange for the program of the 

 meetings. 



The secretary and society representative shall 

 act as the representatives of the Genetics Sections 

 to their respective societies. 



At the annual meeting the chairman shall, in 

 advance of the business meeting, appoint a nom- 

 inating committee of three to nominate officers 

 for the following j'ear. 



These articles were adopted as proposed. 



A nominating committee, composed of E. A. 

 Emerson, G. H. ShuU and Charles Zeleny, an- 

 nounced the following nominees for officers foj' 

 the ensuing year: 



Cliairman: H. S. Jennings. 



Secretary: L. J. Cole. 



Society Mepresentative : B. M. Davis. 



These were duly elected. 



The secretary reported on the condition of the 

 American Genetics Association and the needs of 

 the Journal of Heredity and stated that efforts 

 would be made to hold a conference of the execu- 

 tive committee of the Genetics Sections with the 

 council of the American Genetics Association to 

 see what steps can be taken for their mutual 

 benefit. 



L. J. Cole, 

 Secretary. 



