Thirty-fourth Annual Meeting aa 
The development of the intestinal coiling of the minnow (Campostoma 
Anorak) CLO'MIne,  TANGETN): . sees cpus ce rege seb oe cies W. C. Kraatz 
Morphology of gigantorhynchus (ancanthocephala). (10 min.), 
M. W. CasKEy 
The periodical cicada in Ohio. (20 min., lantern)........... H. A. Gossarp 
An Ohio record for the dragonfly (Tachopteryx thoreyi). (5 min.), 
JAMEs S. HINE 
Parasies, Or tae blackibasss "(lOmin 2. ..c+..-+2e0+c-0... R. V. BANGHAM 
Habits of the common water snake, particularly in its relation to fish. 
[Gi aaah Uy 1 Se ream eon Sea coer Beit eg ete oles Beret en sae F. A. HANAWALT 
New terms suggested to designate the various modes of nutrition in 
Or Pasir CO ahha) ee ee tee re W. J. Kostir 
Recent) mammal records in Ohio. (5 min.):................ JAMEs S. HINE 
Ecologic notes on some homoptera of the southwest. (10 min., lantern), 
HERBERT OSBORN 
The early differentiation of the longitudinal zones in the neural plate of 
eerie OL OL srriasy re es Aon cy eect yt ae cy sye Manes et cic aes aii 6 R. A. KNourF 
Two new hereditary tumors in drosophila. (15 min.)...... IrA T. WILSON 
The primitive lines in amblystoma. (15 min.)............. F. L. LANDACRE 
Comparisons of protozoan nuclei. (20 min.).......... MAYNARD M. METCALF 
A study of comparable developmental stages in chick and pig embryos. 
(iI) a8) ee ee oes ene ee a PP era cmt B. M. PaTTEN 
The differentiation of the epichordal and prechordal portions of the 
brainkineaniblystoma. (lOsmint))s..5...0..625---5..2----- R. C. BAKER 
The spherical blackboard in the teaching of embryology. (5 min.), 
EDWARD L. RICE 
The effect on basal metabolism of ingested adrenalin chloride. (15 min.), 
Frep A. HitcHcock 
Heredity defects of the human hands, with special reference to symph- 
ell esa Sacra eee Gy Tag Tey) Bete 4 oes, Secret eee eis th «eyes esa Soe R. A. HEFNER 
A novel type of symphalangism (?) or hypodactyly (?). (10 min.), 
O. L. INMAN 
Some practical and theoretical aspects of lubricating oil emulsions as a 
Sscalecides gs lOmin) nyc <.5 aay on eit eka hoe ee oan L. L. Huser 
Interaction of the genes in the production of eye color in drosophila. 
PLO IENATIG, Veen ro ects fares Pon ns aren Sago ee UNE elves ee on W. P. SPENCER 
The development of forestry practice. (25 min., lantern), 
EDMUND SECREST 
Botany: Opportunity. (15 min:)). 3352. A.dex 22 b. . eaten MAXIMILIAN BRAAM 
Present tendencies in high school biological courses. (10 min.), 
WILtiaAm E. NIEHAUS 
Some Ohio inter morainal lakes and lake beds. (10 min., lantern), 
GEORGE D. HUBBARD 
The age of the glacial drift in Licking County, Ohio. (10 min.), 
RavcpH G. Lusk 
Some glacial pebbles and cobbles found beyond the glacial boundary in 
Muskingum and Guernsey counties. (10 min.).............. C. F. Moses 
The composition of the Ilinoian drift in Clermont County, Ohio. (5 min.), 
G. W. CoNREY 
Drainage changes in the Warren-Youngstown-Sharon-New Castle areas. 
(QV raaut ot) Pe ees eer oe ee CL Ore me sree t re ete G. F. LAMB 
Erosion levels in the Colorado Plateau. (15 min.)...... RoBerT F. WEBB 
Differences in the form of species usually regarded as common to North 
Amenca and Baropes (5 imins) AQ). sc acd. ood AuGust F,. ForRSTE 
Plant life in ordovician and silurian times. (10 min.)..AuGUST F. FoOERSTE 
The positions occupied by orthoceroids while alive. (10 min.), 
AuGust F. ForERSTE 
An amphibian trail from Pottsville formation. (5 min.)...... G. F. LAMB 
The Cleveland shale fishes of northern Ohio. (25 min., lantern)..J. E. HyDE 
Two recent papers on the earth’s interior. (15 min.)..WALTER H. BUCHER 
