: 1887] Psychology. 1127 
_ Approaching the eye from without inward, one finds first the 
epidermis of the skin, then the corium, then a few irregularly- 
‘branched connective-tissue cells, the pia, and, finally, the outer 
surface of the eye. Surrounding it like a collar is a blood-sinus, 
which even after two or three years’ preservation in alcohol was 
still filled with corpuscles, whose nuclei came out very sharply 
on staining in borax carmine. 
The cells composing the eye are distinctly columnar through- 
out, with well-marked nuclei. The eye is balloon-shaped, or 
 pyriform, and the cells on the upper half point towards the centre, 
While the remainder point towards the long axis of its short stalk. 
On looking at the upper surface of the head in other unstained, 
alcoholic, specimens of Chrysemys picta, there is no external evi- 
dence of the presence of this unpaire 
: ely defined brownish pigment-spot. Judging from analogy 
ar s 
y that none of the Chelonians, in the adult condition, as far as 
`am aware, have a parietal foramen developed, ; 5 
m many Lacertilians. It is therefore clear that the pineal eye in 
p elonians cannot at any time during life attain to even th 
whi ional importance of that organ in any of the Lizards in 
hich it has hitherto been observed.— George Fetter olf, Biological 
aboratory, University of Pennsylvania, November 9, 1887. 
PSYCHOLOGY. 
The Theology of Evolution." —[In the pamphlet beari l 
title is contained a statement of the evidence in favor of 
itive and creative mind in nature, brought to light by the 
a eology of Evolution, a lecture, by E. D. Cope; A Review of the 
wey of Evolution, a reply to Dr. Maa, by E. D. Cope; The Relation of 
ind to Matter, by E. D. Cope; all, 1887, Philadelphia, Arnold and Company- 
= 2. 76 
