462 



SCIENCE 



[N. S. Vol. XXXI. No. 795 



After all the observations had been thus re- 

 duced the systematic difference between the 

 " Cordoba General Catalogue " and the " Cape 

 Catalogue " of 1850 was applied as the mean 

 epochs of the Cape, and the Washington ob- 

 servations are approximately the same. 



A comparison with a manuscript copy of a 

 catalogue of the mural zones prepared by Dr. 

 E. S. Holden and furnished the observatory 

 through the courtesy of Dr. Holden and Pro- 

 fessor W. W. Campbell, while disclosing a 

 number of differences in identification, has 

 led to only nine changes in the 8,Y44 observa- 

 tions so far compared. 



A preliminary discussion of the catalogue 

 positions gives the following mean differences 

 between two observations. 



MEAN DirFEEENCE BETWEEN TWO OBSERVATIONS IN 

 EIGHT ASCENSION 



MEAN DUTEEENCE BETWEEN TWO OBSEBVATIONS IN 

 DECLINATION 



At the present time over one half of the 

 printer's copy of the catalogue is completed. 

 As fast as the copy is finished one set of the 

 results is being sent to Dr. A. Auwers, of 

 Berlin, for insertion in the " Geschichte des 

 Fixsternhimmels." The entire catalogue will 

 be ready for the printer in two or three 

 months. W. S. Eichelbergee 



January, 1910 



THE AMERICAN SOCIETY OF ZOOLOGISTS 

 EASTERN BRANCH 

 The Eastern Branch of the American Society 

 of Zoologists met at the Harvard Medical School, 

 Boston, Mass., on December 28, 29 and 30, 1909. 

 The following resolution was adopted: 

 Resolved (1) That the Eastern Branch of the 

 American Society of Zoologists express its grati- 

 tude for the work of the Commission on Nomen- 

 clature of the International Zoological Congress. 



(2) That it is the sense of the society that the 

 commission be encouraged to extend its present 

 work of deciding questions as to particular spe- 

 cific and generic names. 



(3) That it is the sense of the society that the 

 commission should of its own motion extend its 

 jurisdiction to the ruling in or out of particular 

 works of disputed status, like the Museum Bol- 

 teneanum. 



(4) That in rendering decisions the commission 

 have power to disregard the priority rule for 

 sufficient and specified equitable reasons. 



(5) That all members of this society should 

 submit their questions of nomenclature to the 

 international commission and abide by its de- 

 cisions. 



The president of the society, Professor H. S. 

 Jennings, Johns Hopkins University, and Pro- 

 fessor E. L. Mark, Harvard University, were 

 appointed to act as delegates of the society at 

 the eighth International Zoological Congress. 



Officers were elected as follows: 



President — Thomas H. Montgomery, Jr., Univer- 

 sity of Pennsylvania. 



Vice-president — Harris H. Wilder, Smith Col- 

 lege. 



Secretary-treasurer — Herbert W. Rand, Harvard 

 University. 



Member of Executive Committee — David H. 

 Tennent, Bryn Mawr College. 



The following papers were presented: 



The Segmentation of the Salpa Stolon, with some 



Reflections on Segmentation Generally: W. E. 



ElTTEB, University of California. 

 Some Problems of Cailenterate Ontogeny: Chas. 



W. Haesitt, Syracuse University. 



The paper briefiy reviews certain facts of hy- 

 droid development brought to the attention of the 

 society on previous occasions, and cites additional 

 facts and obseiTations which confirm the earlier 

 results. Of the latter may be cited those found 



