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» fact is that we have entered upon a new area, from which less 
mer ful and well organized bodies are necessarily debarred. We can 
do, by internal cooperation, what has never been possible here- 
Fore’ in which, in the end, the individual worker not only loses 
Othing in the way of individual credit, but, sooner or later, is 
jound to gain immensely thereby. 
In dissecting small larvae it is convenient to hold them by 
mbedding to a slight depth in paraffin. In order to render the 
tructure easily visible the paraffin may be blackened by melting 
Into it a small quantity of shoe-blacking (paste). The melted par- 
ifin may then be poured into an ordinary flat-bottomed watch glass. 
A larva may be imbedded at any time by melting a groove in the par- 
affin with a fine wire. The dissecting may be done on the stage of 
the binocular microscope under water or alcohol and the preparation 
sovered at any time with another watch glass. W. R. McCONNELL. 
A very satisfactory vial for collecting small Coleoptera can 
be made with any large vial with cork to fit, and a small test tube 
the cork slightly smaller than the diameter of the test tube and 
ifter breaking off the bottom of the test tube, force it through the 
hole in the cork until the mouth of the test tube is even with the 
bOp Of the cork. Then insert the cork into the vial. Do not break 
the bottom off the test tube with any care as the more uneven the 
break the more satisfactory will it be. The test tube should pro- 
mrude about one inch into the vial from the bottom of the cork. 
This contrivance acts like a trap, as the beetles which are dropped 
anto the vial through the test tube do not attempt to crawl out, 
When in the field the mouth of the test tube may be left open, thus 
®liminating the nuisance of a stopper. The vial can be carried in . 
Bny position without fear of the beetles falling out. HE. H. GIBSON. 
A common pasteboard mailing tube, such as is used by the de-. 
partment in sending out liquids and other supplies, may be easily 
Converted into a very satisfactory jassid collecting tube. The most 
Convenient size tube is the one 6-1/2 by 1-1/2 inches. The end with 
the tin screw top should be left intact, while the other end is 
knocked off and over this end stretched a piece of white cloth, 
Buch as is used in covering insect cages. Most any kind of cloth 
Which is of light weight and allows the light to penetrate through 
vill do. The cloth is stretched very tightly and held so by an elas- 
tic band. Jassids caught in a net may be transferred into this 
tube by unscrewing the tin cap and placing this open end over the 
Jassid against the net. Once the jassid is in the tube and the tin 
cap put back on, the jassid will hop to the other end, attracted 
here by the light coming through the cloth, and stay there. The 
advantage of this tube is in the fact that the tin cap may be taken 
off for a couple of minutes at a time without any fear of losing the 
jassids already in it, as they will remain at the cloth end. There 
is no sweating within the tube. A tube of the above mentioned size 
will Accommodate fifty jassids, E. H. GIBSON, 
~~) 8 om 
Whose diameter is smaller than that of the cork. Bore a hole through. 



