12 
that this fungus is not found upon any of the fertile leaves. 
On motion the specimen was referred to Prof. Edwards for 
examination and report. 
Prof, A. M. Edwards read a paper 
ON THE PRESENCE OF LIVING INSECTS IN THE HUMAN Bopy. 
showing that several such cases were on record. 
In one case a fly had been reared from a larva ejected from 
the human intestines. As such larva are found mostly ‘in 
decayed fruit, the plan to be followed by means of which the 
unpleasant results sometimes, although not always, arising 
‘from the introduction of such insects by the mouth, is to 
avoid eating such fruit or vegetables in a raw condition, 
which are at all decayed. 
Mr. W. J. Hays made some remarks upon the remarkable 
anatomy of a Currasowa dissected by him. The bird itself 
was only twenty-two inches in length, but the trachea being 
bent upon itself, was found to measure thirty inches. 
May 2, 1870. 
The President in the chair. ‘Twenty-three persons present. 
The Corresponding Secretary announced the decease of Dr. 
Gustav Magnus, of Berlin, Prussia, a Corresponding Member 
of the Society. 
Prof. T. Egleston, Jr., exhibited a very fine cut specimen 
of genuine Topaz, and made some remarks with regard to 
that mineral. Genuine Topaz is a Silico-Fluoride of 
Aluminium, but the substance generally found replacing it as 
a gem is merely colored Quartz. The Topaz is not often 
found in large masses clear enough to cut, and the false 
