72 



SCIENCE 



[N. S. Vol. L. No. 1281 



neon or hydrogen. These lines have been re- 

 peatedly observed in specimens of helium from 

 that day to this. Living and Dewar^ had ob- 

 served some " wild " lines in specimens of 

 Bath gas and suggested the possibility of the 

 presence of coronium. In this connection it 

 is interesting to note that some of the faint 

 lines observed by us visually do correspond 

 closely in wave-length to the coronal lines. 

 During the past winter we have been making 

 rather careful visual observations and find 

 that some of the stronger of these lines belong 

 to the swan sjiectrum of carbon, and are evi- 

 dently due to some compound of carbon which 

 is not completely absorbed by coeoanut char- 

 coal at liquid air temperatures. These carbon 

 lines are recorded in the literature as bands, 

 but under the conditions under which we ob- 

 serve them appear to be sharp lines. We are 

 adding to our equipment a quartz spectro- 

 graph for photographic observations and have 

 under way a systematic fractionation of 

 helium, using a number of methods, with the 

 hope of eliminating the troublesome carbon 

 compounds and of concentrating the unknown 

 source of these remaining fainter lines suffi- 

 ciently to enable them to be identified and 

 thus prove or disprove the presence of cor- 

 onium. 



Hamilton P. Cady, 

 Howard McKee Elsey 

 Universitt of EIansas, 

 Lawrence, Kansas 



THE IOWA ACADEMY OF SCIENCE 



The Iowa Academy of Science held its meetings 

 in the Chemistry recitation room of the Science 

 building of the State Teachers College at Cedar 

 Palls, beginning at 1:30 p.m., Friday, April 25. 

 After the preliminary business session and the gen- 

 eral program section meetings were held. Presi- 

 dent Beyer gave his address on ' ' Some problems in 

 conservation" at the general meeting on Friday 

 afternoon. 



The following officers were elected for the com- 

 ing year: President, T. C. Stephens, Morningside 

 College, Sioux City. First Vice-president, Nicholas 

 Knight, Cornell College, Mt. Vernon; Second 

 Vice-president, D. W. Morehouse, Drake Univer- 

 sity, Des Moines; Secretary, James H. Lees, Iowa 



Geological Survey, Des Moines; Treasurer, A. O. 

 Thomas, State University, Iowa City. 



At 6:45 Friday evening a special war film was 

 exhibited for the benefit of the academy and fol- 

 lowing this the evening was devoted to a rfeume 

 of the work of members of the academy during the 

 war. President and Mrs. Seerley held a reception 

 for the academy members after the meeting. 



Sectional meetings were resumed Saturday 

 morning and the business session closed the meet- 

 ings. The members lunched together at 1:30 p.m. 



The Iowa Section, Mathematical Association of 

 America, held its fourth annual meeting Saturday 

 forenoon, beginning at nine o'clock. 



TITLES OF PAPERS 



Zoology and Allied Subjects 

 A list of the birds found in Marshall county, II.: 



Ira N. Gabrielson. 

 Tlie resistance of streptococci to germicidal agents : 



Heney Albert. 

 The correlation of art and science in the museum: 



Homer E. Dn,L. 

 Variations in the branches of the coelic artery in 



the rabbit: H. E. Werner. 

 An ecological survey of Dry Bun, a small prairie 



stream. (1) The fishes: E. L. Palmer. 

 Animal tracks, food and disposition: is there any 



relation? E. L. Palmer. 

 Some zoological notes from tlie Barbadoes-Antigua 



expedition: C. C. Nutting. 

 Some interesting insect habitats in the tropics: 



Dayton Stoner. _ 



Grasshopper control in Iowa: H. E. Jaques. 

 Some notes cm the Cercopidae with descriptions of 



new species: E. D. Ball. 

 Thomisidce of the Ames region: Ivan L. Eessler. 

 Notes on tlie occurrence of warts on cotton-tail 



rabbits in Iowa: J. E. Gdthrie. 

 Medical worTc in the war: D. J. Glomset. 

 Variations in the branches of the carotid artery in 



the rabbit: Francis Marsh Baldwin. 



Botany 



Notes on the distribution of grasses of Iowa, Wis- 

 consin, Minnesota and the Dalcotas with refer- 

 ence to rust: L. H. Pammel. 



Notes on the barberry: L. H. Pammel. 



The genus Lactuca in Iowa: E. I. Cratty. 



The rust on mammoth clover: W. H. Davis. 



The moss and lichen flora of western Emmet 

 county: B. O. Wolden. 



The flora of Mitcltell county: Mrs. Flora May 

 Tuttle. 



