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GOLDFISH VARIETIES AND 



mon in all the Eastern States, growing in damp places, usually near or 

 bordering streams. Considering that it is scarcely even a bog plant it 

 does remarkably well in the aquarium, where it grows straight up to the 

 surface of the water, regardless of where the light comes from. It is a 

 fair oxygenator, but if kept submerged the leaves gradually dwindle 

 in size, so that it is best to gather a new stock once a year, August or 

 September being the best season to secure vigorous plants. 



QUILLWORT 



Isoetes is a widely distributed genus of a number of species. It is 

 found in the mud and sand at the edges of streams and ponds. In size it 



Fig. 138. Quillwort (Reduced one-half) 



varies from a few inches to several feet. The small submerged species 

 are worth trying in the aquarium, as they are tenacious of life. The 

 leaves rise from the centre of a circle or rosette, producing a very pretty 

 effect. Quillwort should be placed in a good light. It is eaten by some 

 snails and fishes. 



