Septembee 8, 19]]] 



SCIENCE 



319 



Teaching, are entirely made up of physicians 

 and fully represent the medical profession. 

 Meanwhile, no one is better acquainted with 

 the needs of the people in regard to the pre- 

 vention and cuj-e of disease and the preserva- 

 tion of health and healthful conditions than 

 the medical profession itself. And that the 

 medical profession may be even more capable 

 of caring for these needs, nothing is more im- 

 portant than the continued improvement of 

 medical education. — Journal of the American 

 Medical Association. 



Chemistry; Mineralogy; Geology; Botany; 

 Forestry; Zoology; Conehology; Fisheries; 

 Pharmacology; Bacteriology; Sanitation; 

 Engineering. 

 Proceedings. — Washington Academy of Sciences. 



SGIENTIFIG JOURNALS AND ARTICLES 

 The contents of the Journal of the Wash- 

 ington Academy of Sciences for August are as 



follows : 



Physics. — "Melting Temperatures of Sodium and 

 .Lithium Metasilicates, " F. M. Jaeger. 

 "A Method for Determining the Density of 

 certain Solids by means of Eohrbach's Solu- 

 tion having a Standard Eef ractive Index, ' ' 

 H. E. Merwin. 



Electricity. — "A Study of the Current Trans- 

 former with Particular Reference to Iron 

 Loss," P. G. Agnew. 



Geochemistry. — "Minerals and Eoeks of the Com- 

 position MgSiOj — CaSiOs — FeSiOj, ' ' Robert 

 B. Sosman. 



Mineralogy. — "Crystallized Turquoise from Vir- 

 ginia," Waldemar T. Schaller. 

 "Quartz and Fluorite as Standards of Density 



and Refractive Index," H. E. Merwin. 

 "The Temperature Stability Ranges, Density, 

 Chemical Composition and Optical and Crys- 

 tallographie Properties of the Alkali Feld- 

 spars," H. E. Merwin. 



Petrology. — "A Micrometer Ocular with Coordi- 

 nate Scale," Fred Eugene Wright. 

 "The Lavas of Hawaii and their Relations," 

 Whitman Cross. 



Paleontology. — "Remarks on the Fossil Turtles 

 Accredited to the Judith River Formation," 

 F. H. Knowlton. 



Zoology. — "Remarks on the Nervous System and 

 Symmetry of the Crinoids," Austin H. Clark. 



Chemical Statistics. — "The Consumption of the 

 Commoner Acids in the United States," 

 Charles E. Munroe. 



Abstracts. — Geodesy ; Meteorology ; Terrestrial 

 Magnetism; Electricity; Eadio-telegraphy; 

 Chemistry; Electrochemistry; Agricultural 



SPECIAL ARTICLES 

 WHERE ARE THE LARAMIE DINOSAURS f 



The Ceratopsidffi or horned dinosaurs have 

 so long been regarded by paleontologists and 

 others as belonging to the Laramie formation, 

 and also that this " Laramie formation " con- 

 taining them is of Cretaceous age, that facts 

 which seem to oppose this view make but slow 

 headway. That the true Laramie is of Cre- 

 taceous age no one is likely to question at this 

 stage of the discussion, but the mistake lies in 

 presuming that the dinosaur-bearing beds be- 

 long to the Laramie. At the Baltimore meet- 

 ing of the Geological Society of America 

 (December, 1908) I ventured to say, in a pub- 

 lic discussion of one of the correlation papers, 

 that there was no known locality in North 

 America -tvhere dinosaurs (Ceratoposidae) 

 occur in true, undoubted Laramie. To the 

 best of my knowledge and belief that state- 

 ment still holds good. 



In June, 1909, I published a paper^ in which 

 the following is given as the thesis : " The 

 present paper deals with the extensive series 

 of fresh-water deposits of the northwest (i. e., 

 broadly, the region east of the Eocky Moun- 

 tains and between Wyoming and the valley of 

 the Mackenzie Eiver) comprising what is here 

 considered as the Fort Union formation. It is 

 shown that the Fort Union embraces more 

 than has been commonly assigned to it. 

 Conformably below the beds by some geolo- 

 gists considered as the true Fort Union occur 

 dark-colored sandstones, clays and shales, 

 which have often been incorrectly referred to 

 the Laramie, or its equivalents, but which are 

 stratigraphically and paleontologically dis- 



^ Published with the permission of the director 

 of the U. S. Geological Survey. 



^ ' ' The Stratigraphic Relations and Paleontol- 

 ogy of the 'Hell Creek Beds' and Equivalents, 

 and their Reference to the Fort Union Forma- 

 tion," Proo. Wash. Acad. Sci., Vol. 11, 1909, pp. 

 179-238. 



