A LILLIPUTIAN MONSTER. 



519 



borrowed from the kitchen, filled with the water from the 

 stream. By the side of the globe I place another jar, empty. 

 Taking the shorter tube, I place one end in the aquarium and 

 give a quick draw with my lips, slipping the end instantly into 

 the empty jar. As soon as I see that the water is flowing 

 through the siphon I repeat the operation with the full jar, and, 

 as the leg of the siphon is sufficiently long, the water runs from 

 the jar into the bottom of the globe. Thus a current is set up in 

 which the plants wave back and forth, and from the liveliness of 



Fig. 1. Hydra Vulgaris. 



the living creatures it is evident that they enjoy the sensation. 

 When I see that the upper jar is nearly empty, I remove the 



tank 



IS 



siphon from the lower one, and the replenishing of my 

 at an end. 



Few can tell how much pleasure is obtained from this appar- 

 ently trifling " hobby," but it really is intense. Close at hand is 

 the microscope, and on the table, ready for use, lie a piece of 

 glass tubing for a pipette, a zoophyte trough, a pair of forceps, 

 and an ordinary pocket magnifier. It is easy, when anything is 



