80 MARVELS OF POXD-LIFE. 



gelatinous tube, which is probably thrown off in 

 rings. 



To view the details of the structure of a 

 Floscule, it must be placed in a live-box or 

 compressorium, and if specimens are scarce, they 

 should not be allowed to remain in the limited 

 quantity of water those contrivances hold, after the 

 observations are concluded, but sliould be carefully 

 removed, and placed in a little vial, such as 

 homeopathists use for their medicine. By such 

 means an individual may be kept alive for many 

 days. It is also interesting to place a little branch 

 of the plant occupied by Floscules or similar crea- 

 tures, in a glass trough, where they may be made 

 quite at home, and their proceedings agreeably 

 watched by a one-inch or two-thirds power. These 

 troughs, which can be obtained of the optician, 

 should be of plate glass, about three inches long, 

 nearly the same height, and about half an inch 

 wide. If narrower, or much taller, they will not 

 stand, which is a great inconvenience. The preces 

 of glass are stuck together Avitli marine glue, and 

 a very simple contrivance enables the plants or 

 other objects to be pressed near the front, and thus 

 brought into better view. A strip of glass, rather 

 narrower than the width of the trough, is dropped 

 into it, and allowed to fall to the bottom. Then 

 a piece of glass rather shorter than the trough. 



