82 AQUARIUM 



a most beautiful and interesting plant of a light green 

 color. The leaf is fan-shaped, composed of filaments 

 or ribs, much like a skeletonized leaf. Ludwigia Mu- 

 lerttii is also a beautiful plant, as well as a valuable 

 ■ ■ glossy foliage, the 



Vallisneria spiralis 

 is the well known 

 eel grass : Lys. strap- 

 like : root creeping 

 and spreading : fls. 

 strictly dioecious : 

 a very interesting 

 plant in large aqua- 

 rmms. Sagttlaria 

 nuhni-. somewhat le 



•which is very desirable. Mynopln/ll n, i it Ililum 

 Ivs. pinnately p.vrted intocapiUuj .li\i~i n> t li ui' 

 and stem of a bronzy green color This ^^lth 1/ li:ti 

 o'ophylltim, as well as Oabomba, are sold by dealers in 

 bunches, but established plants are preferable for stock- 

 ing the aquarium. Tlie above plants are wholly sub- 

 merged, growiug under the surface of the water, and 

 are of tin- iimsi iiii|i..ii,in'-.- in the aquarium. Another 

 submer;;''! I'liin iIkiI .Ic.rs unt require planting, and 

 is soiiiriuiH , u-r.l. i^ >'/.:/,../(.< (tioides, the water 

 soldier m- widn- ^Iim, Tlir young plants are very 



pretty, but tli.- In ]']:<<:•- ■•<;■ stiff and the edges of 



I" ' ririried with spines. Nu- 



: : l.qited to the aquarium, 



! I hi. nee, or the flsh may 



111.' A. "11.1 s ;ii-9 very pretty, and the 



iUly eat the plants. Tue Salvinia is 



" II the aquarium, but 



,vs very rapidly, and 



1st be avoided. The Eu- 



s (Limnohinm Spongia, 



very attractive plauts, 



I own in the water. The 



s.iipes, var. major, in a 



-tty plant, but does not 



on, generally resulting 



AQUATICS 



for the ends. Three-eighths of an inch from the edge 

 on eitlier side, with a saw, make a groove i^ inch deep 

 mill v.-i^l. riinni-li to rpfoive loosely double-strength 

 };l:i I . .■ . ■'•:• I ii'l lio;irds and fasten them to the 

 l.ii! I . s,, tiuit the grooves will exactly 



iiii; I . ... oil til' L,'roove3 with soft putty, or, 



IjLii 1. uiu.iiiLuu coiiiout, and press into each side a 

 pane of glass. liy making the bottom board 11 Va inches 

 long, an ordinary 10 x 12 window pane will be the proper 

 size. When the glass is pressed to the bottom of the 

 groove, draw the two ends in at the top until the glass 

 is held firmly and then fasten them in place by narrow 

 strips of wood, one on each side of the tank, placed on 

 top of the glass and screwed to the end pieces. These 

 stiips also protect the hands from injury while working 

 Willi Hi spt-cimens in the aquarium. Before filling with 

 t th inner surface of the bottom and ends should 



I 1 lubbed with oil or parafllne and the grooves 



II I I ilii glass well packed with puttv." Afterthebox 

 Is in . 1 It would be well to let it stand in water for a 

 .li\ .1 two The wooden sides will swell and tighten 

 th. loiiils, and leakage will be less probable. 



AQUATICS. America is the most highly favored coun- 

 trj in the world for the cultivation of Aquatic plants. 

 Collections can easily be made t,> furnish a display of 

 flowers from April to October in the open without arti- 

 ficial heat. 



All Aquatics require a rich soil, and this without limit, 

 a depth of water from 1 to .3 feet, and ample space to 

 spread their succulent leaves. In a natural pond, where 

 there is an accumulation of hnmus overlaying a clayey 



the Ivs. are dan 

 merous floatiim 

 but too many m 

 become suffooai. 

 flsh will occasi. 



another small plant often seen 

 under favorable condif 

 iorms a complete iinil . \ 

 ropean and Anil ri.iM f 

 Hydroeliaris J/- 

 their long, silk> i ' 



water hyacinth, l.n m,.' 

 small state is a cm i. his 

 continue long in a good condition 

 from too much shade and unnat- 

 ural conditious of atmosphere, a 

 This plant is of benefit to the " 

 aquarium in the breeding sea- 

 son, as the roots are receptacles 

 for fish spawn. The water 

 lettuce (Pistia Stmtioles) is 

 another v.ry attractive i.lant, 

 but it slionl.l III- avoi,|...l ,.x<-.',,l 



Aquariums are rapidlj' in- 

 creasing in popularity for home 

 use, and are of great service in 



one part sheep 



Leaflet N.i 

 CoIIcl;-.' ■'( 

 Univ, I : 



tangular ones are best if large 

 fishes are to be kept, but they 

 are not essential. A simple 

 home-made aquarium of glass 

 and wood is described in .Tack- 

 man's Nature Study, as follows 

 (the dimensions being slii;litlv 



alte 



IIK inches wide and 12 inches 

 long for the bottom, and two 

 boards of the same thickness 

 and length, 10% inches high. 



121. 'Workine drawines tor makine box shown in Fie. 120. 



