192 
Proceedings of the Ohio Academy of Science 
Scientific. Sessions. 
The complete scientific program of the meeting follows: 
PRESIDENTIAL ADDRESS. 
Thunderstorms; especially those of Ohion 2... =... ose W. H. ALEXANDER 
PUBLIC LECTURES. 
Hookwormand suman ehiclency-aeterrie te iiernite ie enaete on CHARLES A. KOFOID 
Scientific work at the Ohio Bureau of Juvenile Research.... HENRY H. GODDARD 
CAS ES ANS) em 
PAPERS. 
The new Cleveland Museum of Natural History. (15 min.)....PAuL M. REA 
The state park situation in Ohio. (15 min.)........... J. ERNEST CARMAN 
Chronological view of men of science. (7 min.)................ J. A. CULLER 
A peculiar case of stature inheritance. (3 min.)............. A. B. PLOWMAN 
A differential sensitivity theory of time and space and its bearing on 
Evolutions. o(/amdine) mea Meer P serie aijaci ters ticsseteerree reine L. B. WALTON 
The relation of the biologist to public health administration. (15 min.), 
A. B. PLOWMAN 
The function of the striae and the origin of bilateral symmetry in the 
euglenoidss, (@5imins) > ((QWanitern) matics ane camer eee L. B. WALTON 
The geographical distribution of the genera of Opalinidae. (20 min.), 
(Opaque! projection) iii02 FP oc coe Obie eink overs ois MAYNARD M. METCALF 
Hemiptera of the Adirondacks. (10 min.) (Lantern)..... HERBERT OSBORN 
Collecting in southern Florida. (10 min.)..........,..... HERBERT OSBORN 
Some studies in Hessian fly emergence. (10 min.) (Lantern)..T. H. PArKs 
Notes on the habits and life history of Galeatus peckhami Ashm. 
(Simin) (banter) tt pee ee Mh ORE OPES? chs COR CARL J. DRAKE 
A new Ambrosia beetle: notes on the work of Xyloterinus politus Say. 
(Gumi) Ceantern)) + sare eatearctevr rover by geleetera cts chat stg oaslioee Car J. DRAKE 
Phylogeny and distribution of the genus Libellula. (20 min.) (Lantern), 
CLARENCE H. KENNEDY 
Aids in teaching elementary cytology. (By title)........... Z. P. METCALF 
The cytology of the sea-side earwig Anisolabis. (15 min.)..S. I. KORNHAUSER 
Copulation in Planaria maculata. (6 min.)............0. R. A. BUDINGTON 
On the regulative capacity of the neural tube. (15 min.) (Lantern), 
( 
H. L. WIEMAN 
The musculature of the head and throat of the Chimaera ogilvyi. (15 min.) 
(amie mn) eye coat a ratene tele ee asese thay: 5 «jal ieie easter eietnerebeens MAE FREIDLANDER 
New models of the development of the heart in the chick. (20 min.), 
BRADLEY M. PATTEN 
Some features of the morphology of the kidney of Necturus. (20 min.), 
S. W. CHASE 
Orientation an the cate 1 (Opmin®) ee ears ese cmeere eee Francis H. HERRICK 
Diet,of.a captive mole. - @ianin:) 235% visits. 5 22.5 eee tines E. L. MosELEy 
Additions to the birds,of Ohto: 1 Olmin.) eee cane sep cleo LYNDA JONES 
Phagocytoses and clotting in the perivisceral fluid of Arbacia. (10 min.), 
J. E. KinDRED 
