262 



SCIENCE 



[N. S. Vol. XLV. No. 1159 



marine topograpliy of each reef-platform 

 structure as a wliole and the elementary prin- 

 ciples of oceanography declare against the 

 assumption that the forms and spatial rela- 

 tions of atoll and barrier reefs are due to the 

 sinking of the earth's crust. 



A New Thermometer Scale: Alexander Mc- 

 Adie, Blue Hill Observatory, Harvard Univer- 

 sity. It is suggested that the absolute zero 

 and the melting point of ice be designated as 

 and 1,000. 



On the Immunity Coloration of Some Nudi- 

 hranclis: W. J. Crozier, Bermuda Biological 

 Station for Eesearch, Agar's Island, Bermuda. 

 The coloration of Chromodoris eehra is a 

 metabolic accident, at least in relation to its 

 protection. 



Some Effects of the Continued Administra- 

 tion of Alcohol to the Domestic Fowl, with 

 Special Reference to the Progeny: Raymond 

 Pearl. Confirmation of previous calculations 

 that the progeny of alcoholized parentage in 

 poultry, while fewer in numbers, are made up 

 of individuals superior in physiological vigor 

 and that this result is due to a selective action 

 of the alcohol upon the germ-cells. 



An Ionization Manometer: 0. E. Buckley, 

 Research Laboratory, American Telephone and 

 Telegraph Company and Western Electric 

 Company. Use is made of the ionization of 

 gas by an electron discharge. The range of 

 the apparatus is from 10"^ mm. to as low pres- 

 sures as can be obtained. 



Physiological Studies on Bhizophora: 

 Howard H. M. Bowman, Department of 

 Botany, University of Pennsylvania, and Tor- 

 tugas Laboratory, Carnegie Institution of 

 Washington. The rate of transpiration varies 

 directly with the concentration of the medium 

 in which the Rhizophora plants grow. 



On the Hydrogen Ion Concentration of Sea 

 Water, and the Physiological Effects of the 

 Ions on Sea Water: J. F. McClendon, Depart- 

 ment of Physiology, University of Minnesota, 

 and Tortugas Laboratory, Carnegie Institu- 

 tion of Washington. It is concluded that 

 OH', ISTa' and K' increase the permeability of 

 the plasma membrane by causing it to swell 

 and that Ca", Mg" and H' (at least on the 



alkaline side of the isoelectric point) inhibit 

 increase in permeability by inhibiting swelling. 



Some Interrelations hetween Diet, Growth 

 and the Chemical Composition of the Body: 

 Lafayette B. Mendel and Sarah E. Judson, 

 Sheffield Laboratory of Physiological Chemis- 

 try, Tale University. Changes in the water, 

 ether extract, and ash content of the body 

 have been determined under various conditions. 



Further Study of the Atomic Weight of Lead 

 of Badioactive Origin: Theodore W. Richards 

 and Charles Wadsworth, 3d, Wolcott Gibbs 

 Memorial Laboratory, Harvard University. 

 Atomic weight of four different examples of 

 isotopic lead not hitherto tested was deter- 

 mined, with the results varying from 207.00 

 to 206.08. 



On Some Anomalies in Geographic Distri- 

 hution of Pacific Coast Mollusca: William 

 Healey Dall, Smithsonian Institution, Wash- 

 ington, D. C. Observations in regard to long- 

 continued studies by the author. 



Some Psycho-Physiological Processes as 

 Affected hy Alcohol: W. R. Miles, Nutrition 

 Laboratory, Carnegie Institution of Washing- 

 ton. The percentile effects of the ingestion of 

 alcohol upon a related group of processes, such 

 as the patellar reflex latency, lid reflex latency, 

 patellar reflex amplitude, were studied. 



The Influence of the Marginal Sense Organs 

 on Metaholic Activity in Cassiopea Xamachana 

 Bigelow: L. R. Gary, Department of Biology, 

 Princeton University, and Department of 

 Marine Biology, Carnegie Institution of Wash- 

 ington. Muscular activity is a relatively un- 

 important factor in determining the metabolic 

 activity of Cassiopea. 



New Evidence in Begard to the Instahility 

 of Human Types: Pranz Boas, Department of 

 Anthropology, Colimibia University. 



A Revision of the Atomic Weight of Tin: 

 Gregory PaTil Baxter and Howard Warner 

 Starkweather, Coolidge Memorial Laboratory, 

 Harvard University. The value Sn = 118.703 

 (01 = 35.457) is found. 



Further Studies of Nerve Conduction in 

 Cassiopea: Alfred Goldsborough Mayer, De- 

 partment of Marine Biology, Carnegie Insti- 

 tution of Washington. 



