no 



THE GUIDE TO NATURE. 



either trapped or allowed to roam at pockets for aquatic plants, or othe 



will in the larger rear enclosures. attractive arrangement of submerge 



As the illustration No. I shows, the or floating plants made, which wi 



BIS 



^m-^-^L^z^f'^M^ 



A POND AQUARIUM 



water-pens (A), extending back from 

 each aquarium front, are separated by 

 partitions (B) from each other, and 

 the aquaria (C) are furnished with 

 wire-mesh movable backs. The bot- 

 toms (D) are perforated to allow the 

 escape of sedimetary deposits and an 

 occasional change of water through 

 the funnel-shaped gutter (E), which, 

 together with a drain from the low 

 point of each compartment, are led to 

 some point outside the building. 



In each of the aquaria a mound of 

 rocks (F) may be erected, having 



vary the picture in each enclosur< 

 A great wealth of other plants, wat( 

 poppies, lilies, lotuses, umbrella plant 

 arrowheads, rushes, sedges, flags, ca 

 tails and all else that grows in, on c 

 out of the water, could be planted int 

 the reservoirs that would produce tr 

 effect of a submerged garden an 

 bring the life history of the aquat 

 flora to view as has never befoi 

 been done. 



Each compartment could contai 

 different genera and species of fishes 

 in one the common goldfish and car] 



A SECTION OP ENCLOSURE FOR A POND AQUARIUM 



