18 E. L. RICE Vol. XXII, No. 1 



Scientific Sessions. 

 The complete scientific program of the meeting follows: 



PRESIDENTIAL ADDRESS. 

 Thunderstorms; especially those of Ohio W. H. Alexander 



PUBLIC LECTURES. 



Hookworm and human efficiency Charles A. Kofoid 



Scientific work at the Ohio Bureau of Juvenile Research. . . .Henry H. Goddard 



PAPERS. 



1. The new Cleveland Museum of Natural History. (15 min.) . . . . Paul M. Rea 



2. The state park situation in Ohio. (15 min.) J. Ernest Carman 



3. Chronological view of men of science. (7 min.) J- A. Culler 



4. A peculiar case of stature inheritance. (3 min.) A. B. Plowman 



5. A differential sensitivity theory of time and space and its bearing on 



evolution. (7 min.) L. B. Walton 



6. The relation of the biologist to public health administration. (15 min.), 



A. B. Plowman 



7. The function of the striae and the origin of bilateral symmetry in the 



euglenoids. (15 min.) (Lantern) L. B. Walton 



8. The geographical distribution of the genera of Opalinidae. (20 min.), 



(Opaque projection) Maynard M. Metcalf 



9. Hemiptera of the Adirondacks. (10 min.) (Lantern) Herbert Osborn 



10. Collecting in southern Florida. (10 min.) Herbert Osborn 



11. Some studies in Hessian fly emergence. (10 min.) (Lantern). .T. H. Parks 



12. Notes on the habits and life history of Galeatus peckhami Ashm. 



(5 min.) (Lantern) Carl J. Drake 



13. A new Ambrosia beetle: notes on the work of Xyloterinus politus Say. 



(6 min.) (Lantern) Carl J. Drake 



14. Phylogeny and distribution of the genus Libellula. (20 min.) (Lantern), 



Clarence H. Kennedy 



15. Aids in teaching elementary cytology. (By title) Z. P. Metcalf 



16. The cytology of the sea-side earwig Anisolabis. (15 min.) . . S. I. Kornhauser 



17. Copulation in Planaria maculata. (5 min.) R. A. Budington 



18. On the regulative capacity of the neural tube. (15 min.) (Lantern), 



H. L. Wieman 



19. The musculature of the head and throat of the Chimaera ogilvyi. (15 min.) 



(Lantern) Mae Freidlander 



20. New models of the development of the heart in the chick. (20 min.), 



Bradley M. Patten 



21. Some features of the morphology of the kidney of Nee turns. (20 min.), 



S. W. Chase 



22. Orientation in the cat. (5 min.) Francis H. Herrick 



23. Diet of a captive mole. (5 min.) E. L. Moseley 



24. Additions to the birds of Ohio. (10 min.) Lynda Jones 



25. Phagocytoses and clotting in the perivisceral fluid of Arbacia. (10 min.), 



J. E. Kindred 



