Shapes of Aquariums. 
they are put back in their places. 
As may be seen in the illustration, 
the water of the aquarium should reach 
just below the glass brackets. 
Such a tank has all the advantages of 
a parlor aquarium and the development 
of the tadpole to the frog may be better 
observed in it than in any other. 
The submerged plants shown in the 
illustration are: Horn or Waxwort 
(Ceratophyllum demersum), No. 9; 
Ludwigia Mulerttii, No. 10; Rosy fan- 







(rinse 
al 
HM 



T41 
wort (Cabomba roszfolia), No. 11; 
Floating Arrowhead (Sagittaria natans), 
No. 8; Canal pest (Anacharis cana- 
@ensis), No: ) 12;-° Water ‘hyacinth 
(Eichhornia crassipes), No. 6; Sal- 
vinia natans, No. 7. Of animal life 
there is represented: Frog tadpoles 
in different stages of development, No. 
19; Newts, No. 18; Fantail goldfish, 
No 14; Comet goldfish, No. 15; Gol- 
Gone, No: 16; Pench, No. 17; and a 
ram’s horn snail, by Fig. 20. 















Parlor Aquarium. 
