194 Proceedings of the Ohio Academy of Science 
58. A prekiminary report on retroactive inhibition (with particular reference 
THO) THMOY KOVavelunKoras)))5 (PAN anbbis) ya oonsassobaccdnoconccosucos E. B. SKAGGS 
59. The measurement of psychological effects of fatigue and low oxygen. 
(ZO km wer (ban'ternyisiias ace mc cee eiacie cicre mrercae tre ee C. F. DoCKERAY 
60. Discussion of the legal status of psychology in Ohio State. 
Discussion led by H. Austin AIKINS 
DEMONSTRATIONS. 
(a) Chromosomal complexes of Anisolabis................... S. I. KORNHAUSER 
(b) Geographic distribution maps for the Opalinidae and their hosts, 
MAYNARD M. METCALF 
(c) New models of -development of the heart in the chick..... BRADLEY M. PATTEN 
(d) Chart and data relating to an interesting case of stature inheritance, 
A. B. PLOWMAN 
(ce) Multiple ova in Graafian follicles of cat... 5-1... eas EpwarpD L. RICE 
(@) Sulphur dioxide tayury to vegetationa «40 o-miscr-is~ scl aeinte sa A. E. WALLER 
() aillustratrons ofieuslenoidsiae secs me ceeds tae areiete re hele L. B. WALTON 
