W. A. Norton on Molecular Physics. 167 
habit it will assign that size which the image would really have 
at that distance, or that effect of lateral distance, or resulting 
expansion, which the divergence of the lines of direction would 
give at that distance, 
- Abercrombie relates the following instance as having oc- 
curred in his own experience, ‘I remember,” he says, ‘once 
aving occasion to pass along Ludgate Hill, when the great 
door of St. Paul’s was open, and several persons were standing 
mit. They appeared to be very little children; but, on coming 
_ Up to them, were found to be full grown persons.” 
.. He theory which I have thus advanced, taken in connection 
with the mistaking practice of consciousness, will, I believe, 
: a satisfactory explanation of all the phenomena of vis- 
on—some of the more interesting of which phenomena, as 
Well as the subject of monocular vision, I propose in a future 
Paper to consider. 
Hastings-upon-Hudson, N.Y. 
> eta ee 
Apr. XV.— Fundamental Principles of Molecular Physics ; 
by Professor W. A. Norton. 
— ® recent work by Joseph Bayma, 8S. J. Professor of Phi- 
of my theory 0 
* 0 
and 
