SCIENCE 



Pkiday, September 2, 1910 



CONTENTS 

 The Palmer Physical Laboratory: Pbofessob 

 HowABD McClenahak- 289 



Practical Nomenclature: Pbofessob Jajies 

 G. Needham 295 



The National Conservation Congress 300 



The International Commission on Zoological 

 Nomenclature 301 



The Brooks Memorial Volume 302 



Scientific Notes and News 303 



University and Educational News 305 



Discussion and Correspondence: — 



The Reform of the Calendar: CHAjKtES E. 

 SloctjM. Occurrence of Mistletoe on Pru- 

 nus simoni: P. J. O'Gaba 306 



Scientific Books: — - 



Brigham on Volcanoes of Kilau-ea and 

 Mauna Loa: Pbofessob C. H. Hitchcock. 

 Nordenshjold on Die Polanvelt und ihre 

 Nachbarlander: Edwin Swift Balch .... 306 



Scientific Journals and Articles 312 



Special Articles: — ■ 



The Composition of Some Minnesota Bocks 

 and Minerals: Feank F. Gbout. The 

 Toads of the Northeastern United States: 

 W. DeW. Miller, James Chapin. The 

 Increase in Permeability of the Sea 

 Urchin's Eggs to Electrolytes at the Be- 



■ ginning of Development: Dr. J. F. Mc- 



UI.END0N 312 



The San Francisco Meeting of the American 

 Chemical Society: Pbofessob Chables L. 

 Paesoxs 318 



MSS. intended for publication and books, etc.. Intended for 

 reriaw should be se^t to the Editor of Sciehce, Gariison-on- 

 HudflOB. N. Y. 



THE PALMER PHYSICAL LABORATORY 

 The Palmer Physical Laboratory of 

 Princeton University was erected and 

 equipped by the generosity of Stephen S. 

 Palmer, Esq., of Princeton, to meet the 

 rapidly growing needs of the departments 

 of physics and electrical engineering. The 

 building is devoted entirely to the uses of 

 the two departments. It is a two-story 

 and basement structure of brick and Indi- 

 ana limestone, and is a striking addition 

 to the group of collegiate Gothic buildings 

 which have been added to Princeton's 

 equipment in recent years. Mr. H. J. 

 Hardenbergh, of New York, was the archi- 

 tect. 



The laboratory is, roughly, H-shaped, 

 with the tongue of the H shifted laterally 

 towards the front. The location of the 

 building and the contour of the land are 

 peculiarly favorable for an abundant sup- 

 ply of air and light to all parts of the 

 building. The land slopes away rapidly 

 toward the south, so that while but two 

 stories show in front, the wings and the 

 back have three full stories above ground 

 level. The constant temperature, electrical 

 standards and ventilating rooms are al- 

 most wholly under ground; yet the ma- 

 chine shops, electrical laboratories and 

 professors' and private research rooms, 

 which occupy the balance of the basement, 

 are entirely above ground. 



A double problem had to be solved in the 

 planning of the building — provision had 

 to be made for the accommodation of the 

 very large amount of work necessitated by 

 the required courses in physics, both theo- 

 retical and experimental, and by the con- 



