Miscellaneous Intelligence. 473 



No. 24. Mutants and Hybrids of the Oenotheras; by D. T. 

 MacDougal, assisted by A. M. Vail, G. H. Shull and J. F. 

 Small (Cold Spring Harbor Papers, No. 2). 57 pp. 



No. 28. A revision of the Atomic Weights of Sodium and 

 Chlorine ; by Theodore W. Richards and Roger C. Wells. 

 70 pp. — See notice on p. 451. 



No. 29. The Color Sensitivity of the Peripheral Retina ; by 

 John Wallace Baird. 80 pp. 



No. 30. Stages in the development of Sium cicutcefolium / by 

 George Harrison Shull. 28 pp. (Cold Spring Harbor Papers, 

 No. 3). 



A study of the Conditions for Solar Research at Mt. Wilson, 

 California ; by George E. Hale (Contributions from the Solar 

 Observatory of the Carnegie Institution, Mt. Wilson, California, 

 No. 1). 27 pp. — A careful investigation of the climatic condi- 

 tions upon Mt. Wilson, near Pasadena, California, shows that it 

 offers very great advantages for astronomical work, particularly 

 in the study of the sun and solar radiation. Professor Hale 

 remarks that he knows " no other site that compares at all favor- 

 ably with it." It is much to be hoped that, the plans for the 

 building and equipment of a large solar observatory at this point 

 may be carried rapidly to completion. 



10. Cold Spring Harbor Moriographs. Ill, The Salt-Marsh 

 Amphipod : Orchestia palustris ; by Mabel E. Small wood. 21 

 pp. with two plates and a map. Brooklyn, March, 1905. Pub- 

 lished by the Brooklyn Institute of Arts and Sciences. 



11. Science Bulletins of the Brooklyn Institute of Arts and 

 Sciences. Published by the Macmillan Company — The following 

 numbers of volume I have appeared under date of March 31 : 



No. 5. Mammals from Beaver County, Utah, collected by the 

 Museum Expedition of 1904 ; by J. A.. Allen. Pp. 117-122. 



No. 6. Additions to the Coleoptera of the United States with 

 notes on some known species ; by Chas. Schaeffer. Pp. 123- 

 140. 



12. Project for the Panama Canal ; by Lindon W. Bates. 

 38 pp., with several maps and plans. — The author discusses briefly 

 some of the projects that have been proposed for the canal and 

 then presents in full the one which in his judgment is likely to 

 lead to the best results. General plans and profiles are given of 

 the water way, the regulation works, and the terminal harbors. 



Obituary. 



Henry R. Medlicott, F.R.S., the eminent English geologist, 

 died on April 6 at the age of seventy-six years. His work was 

 chiefly in connection with the Geological Survey of India, which 

 he joined in 1853 and of which he was the Director from 1876 to 

 1887. 



Professor Pietro Tacchini, the celebrated Italian astron- 

 omer, died at Spilamberto, Modena, on the 24th of March, at the 

 age of sixty-seven years. 



Professor Otto Struve, Director of the Pulkowa Observa- 

 tory from 1862-1890, died on April 14, at the age of eighty-five 

 years. 



