C. G. DUNNING ON A NEW FORM OF LIVE BOX. 251 



being more convenient for zoophytes, &c, but should it be 

 thought desirable to restrict the movements of a lively object, 

 such as an Ephemera larva, it is only necessary to select a glass 

 ring a little thinner than the depth of the cell, place it in the 

 centre, and fill the whole cell "with water. The object may then 

 be placed within the ring, and the cover applied as before 

 stated. 



X 



