764 



SCIENCE. 



[N. S. Vol. XX. No. 518. 



tistics published for the entire manufaeturing 

 industries of tlie country taken as a whole 

 are accurate to a high degree, the statistics 

 for any single industry forming a part of 

 this whole may, owing to the fact that to 

 prevent duplication an establishment manu- 

 facturing a variety of products is classified 

 according to that one of its products having 

 the maximum value, be less accurate. He 

 believes that this inaccuracy in presentation 

 may be greatly remedied by a further anal- 

 ysis and segregation of the published data 

 and that this analysis may be so extended as 

 to show the disposition made of the products. 

 This last process appears not to have been 

 heretofore attempted, yet the results should 

 prove to be not only of general interest but 

 of special value in legislation and litigation 

 where the rule of ' principal use ' obtains and 

 in manufacturing and other policies where 

 the question of substitution may arise, while 

 in the census work itself this data would fur- 

 nish additional cheeks on the returns and the 

 results. Examples of the results of such an- 

 alyses as pertained to the wood distillation 

 and the sulphuric acid industries were pre- 

 sented. 



The last paper of the program, entitled 

 ' Memories of Bunsen and Heidelberg,' was 

 presented by Dr. W. F. Hillebrand. The 

 speaker gave a description of the Heidelberg 

 chemical laboratory as it was conducted by 

 Bunsen thirty years ago. Personal reminis- 

 cences and experiences were recalled. 



A. Seidell, 

 Secretary. 



NEW YORK ACADEMY OF SCIENCES. SECTION OF 

 BIOLOGY. 



At the ISTovember meeting Professor Under- 

 wood presided. Dr. W. M. "Wheeler, of the 

 American Museum of Natural History, was 

 elected chairman, and M. A. Bigelow, of 

 Teachers College, Columbia University, sec- 

 retary, of the section for the year 1905. Papers 

 were presented by W. E. Kellieott, M. A. 

 Bigelow and F. E. Lloyd. 



Dr. Kellicott's paper, on the ' Development 

 of the Venous System of Ceratodus,' pointed 

 out many similarities to the amphibian. 



These similarities are so numerous and exact 

 that it seems impossible to believe that the 

 Dipnoi and Amphibia have not arisen as a 

 common stock which has separated later into 

 these groups. The adult relations and the 

 mode of development of the vena cava of 

 Geratodus indicate that this vessel is not to 

 be looked upon as one of the hepatic veins 

 which has made a new connection with the 

 posterior cardinal vein, but that its anterior 

 portion develops as a short cut by way of 

 which the blood from the mesonephros may 

 be carried to the heart after the atrophy of 

 the pronephros and the associated veins. 



Mr. Bigelow briefly described some observa- 

 tions on eggs of the crustacean Hippolyte 

 subjected to slight pressure during cleavage. 

 While the normal cleavage is total, pressure 

 prohibited the formation of cell-boundaries, 

 and unsegmented eggs with 2, 4, 8, 16 and 32 

 nuclei were obtained. When the pressure was 

 removed the cell-boundaries soon appeared. 

 The cleavage of this egg under pressure ex- 

 hibits some striking resemblances to the nor- 

 mal superficial cleavage of eggs of allies. 



Professor Lloyd described the conditions 

 for botanical research at the Desert Botanical 

 Laboratory in Arizona. Many photographs 

 were exhibited to illustrate descriptions of the 

 peculiar flora in the vicinity of the laboratory 

 and of the method of conducting experiments, 

 especially those concerned with the relation 

 of desert plants to water. 



M. A. Bigelow, 



Secretary. 



CLEMSON COLLEGE SCIENCE CLUB. 



The forty-ninth regular meeting of the 

 Clemson College Science Club was held in the 

 lecture room of the electrical laboratory, Oc- 

 tober 28, at 8:30 p.m. Dr. J. H. James gave 

 a brief report of the summer meeting of the 

 American Chemical Society, reviewing infor- 

 mally the more important papers. Professor 

 W. M. Eiggs gave an account of a new food 

 product, practically a popped rice, prepared 

 by a process invented by Dr. A. P. Anderson, 

 a former member of the Clemson College 

 faculty; and now being exhibited at St. Louis. 

 The principal paper of the evening was by 



