Beck, on a Live-Trap and Parabolic Reflector. 113 
which has attended the researches of Professor Stokes and 
Mr. Sorby would lead us to believe that any time bestowed 
on the subject^ either by the chemist, physiologist, or mine- 
ralogist, would meet with an ample reward. 
Description of a new form of Live- trap, and Parabolic 
Reflector. By Richard Beck. 
(Read June 14, 1865.) 
In endeavouring to examine under the microscope many 
small living objects I had often felt a great want of some 
piece of apparatus by which the specimen could be confined 
in a small space without injury, and yet in a manner that 
permitted the use of the necessary object-glasses and appara- 
tus. After trying various schemes I venture to bring before 
your notice the following live-trap, which supplies most of 
those requirements which I had been unable previously to 
obtain. 
Fig. I. 
The contrivance is simply a plate of glass (Fig. I), with a 
smaU drilled hole («), covered above and below with pieces of 
thin glass similar to those in Fig. II ; but some arrangement 
