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SCIENCE 



[N. S. Vol. XXIX. No. 737 



" Some Notes on the Steel-hardening Minerals," 

 by J. C. Cooper. 



" A Speculation in Crystallography," by J. E. 

 Todd. 



"Economy of Heat in Cooking," by J. T. Love- 

 well. 



" Some Difficulties in Testing Food for Sul- 

 phites," by J. T. Willard and 0. A. A. Utt. 

 Geological Papers 



" Seme Notes on the Olympic Peninsula, Wash- 

 ington," by A. B. Reagan. 



" The Formations of the Marion Stage of the 

 Permian," by J. W. Beede. 



" Why the Southern Hemisphere is the Principal 

 Water Hemisphere and the Northern the Principal 

 Land Hemisphere," by J. J. Jewett. 



" The Drainage of the Kansas Ice Sheet," by J. 

 E. Todd. 



" Expedition to the Laramie Beds of Converse 

 County, Wyoming, 1908," by C. H. Sternberg. 



"A Study of Certain Features of the Lawrence 

 Shales," by J. A. Yates. 



" The Extremities and Skull Structure of Diplo- 

 caulus, with Eestoration," by S. W. Williston. 



" The Skull Structure of Diplocaulus magnicor- 

 nis Cope," by R. L. Moodie. 



" Carboniferous Quadrupeds of Kansas," by R. 

 L. Moodie. 



Biological Papers 



"A New Bird for the Kansas List, taken at 

 Lawrence," by L. L. Dyche. 



" Supplementary Additions to the List of Kan- 

 sas Diptera," by E. S. Tucker. 



" Weismann's Germ Plasm Hypothesis Unten- 

 able," by L. C. Wooster. 



" Notes on a Captive Heloderma," by B. B. 

 Smyth. 



" The Birds of the Olympic Peninsula, Washing- 

 ton," by A. B. Reagan. 



" Trees and Shrubs of Kansas," B. B. Smyth. 



" Distribution, Natural Enemies and Breeding 

 Habits of the Kansas Pocket Gophers," by T. H. 

 Scheffer. 



" The Poison Glands of a Rattlesnake during the 

 Period of Hibernation," by L. L. Dyche. 



" Notes on Bats," by Lumina C. R. Smyth. 



" The Latest Tests for Gas-forming Bacteria in 

 Water," by W. B. Wilson. 



" Additions to the List of Kansas Coleoptera," 

 by W. Knaus. 



" Some Notes on Kansas Coleoptera," by W. 

 Knaus. 



" Note on the Northern Distribution of Amblp- 

 chila cylindriformis Say," by W. Knaus. 



" Kansas Coleoptera of the Families Colydiids, 



Cucujidae, Cryptophagidae, Mycetophagidse, Der- 

 mestidiB, Histeridse, Nitidulidse, Lathridiidje, Tro- 

 gositidfe, Parnidse, Heteroceridae, Dascyllidae and 

 Rhipiceridse," by W. Knaus. 



" Intercellular Spaces in Plants," by L. A. Ke- 

 noyer. 



" Some Notes on the Common Mole," by T. H. 

 SehefiFer. 



" Coccidae of Kansas," by G. A. Dean. 



" Notes on Kansas Mammals," by D. E. Lantz. 



" Some Interrelations of Protozoa," by C. H. 

 Edmondson. 



" List of Insect Types and Co-types in the Col- 

 lection of the University of Kansas," by C. H. 

 Withington. 



" Habits of Parasitic Hymenoptera, II.," by C. 

 H. Withington. 



Miscellaneous Papers 



" The Importance of having Standard Weights 

 and Measures," by E. F. Stimpson. 



" Temporary Industrial Fellowships," by R. E. 

 Duncan. 



"Railway Rates from an Engineering Stand- 

 point," by B. F. Dalton. 



" The Centenary of Charles Darwin," by A. H. 

 Thompson. 



" Estimation of the Relative Value of Feeds," by 

 E. B. Cowgill. 



" Further Notes on the Influence of Heredity in 

 Stock-breeding," by I. D. Graham. 



" Ups and Downs of our Homes from an Archi- 

 . tect's Point of View," by N. P. Nielsen. 



" Some Glimpses of Tahiti," by C. H. Edmond- 

 son. 



" Cancer," by J. M. McWharf. 



" The Cause and Prevention of Tuberculosis," by 

 S. C. Emley. 



" An Improved Water-supply for the City of 

 Emporia," by A. J. Smith. 



" A Speculation in Crystallography," by J. E. 

 Todd. 



" Indian Remains in the Canadian River Val- 

 ley," by T. L. Eyerly. 



'•■ Notes on Photography of Wild Birds," by J. 

 B. Parker. 



" A New Geometrical Figure and its Possible 

 Application," by E. C. Warfel. 



" Preliminary Note on Measuring the Speed of 

 Photographic Shutters," by H. I. Woods. 



" Views and Notes from Utah," by I. D. Cardiff. 



THE ASSOCIATION OP TEACHERS OF MATHEMATICS IN 

 THE MIDDLE STATES AND MARYLAND 



The eleventh meeting of the Association of 



