File:Aquatic life (1916-1917) (19747433825).jpg

Title: Aquatic life
Identifier: aquaticlife219161917baus (find matches)
Year: 1916-1917 (1910s)
Authors: Bausman, Joseph E
Subjects: Aquariums; Fish culture
Publisher: Philadelphia : J. E. Bausman
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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152 flquatU IKr from back to front than either of them; this was glazed with opal glass to ex- clude excess of light, dust and fingers. A small cup-hook was put into the lower side of the frame at each end and, verti- cally below each hook, a ^-inch hole was bored through the base board. A small screw-eye was next soldered into
Text Appearing After Image:
one end of a ^-inch brass-cased rod, this was passed through the hole in the board, hung on the cup-hook and cut off ^ inch below the board; it was tapped for I inch and fitted with a thumbscrew; the end was drilled and a split ring fitted. Two such rods were, of course prepared for each set. As window blinds are furnished for the Museum, and not for the aquaria, it became necessary to shield the latter from the light of sunny Australia. This was done by means of two sheets of glass, one opalized to diffuse the light and confine attention to the inmates in- stead of permitting inspection of the view outside the window, and the other of green color to be used when direct sunlight fell upon the aquaria. These sheets rested upon the felt on the base- board and were inclined backwards above, being caught by a fillet on the underside of the frame, which it will be remembered is three inches wider than the accumulator jars. Ample air space Is thus insured between the glass sheets and the wall of the aquarium, a provision made to counteract the heating rays of the sun coming through the window. To feed the inmates or clean the ves- sels, the attendant gives the thumbscrews two or three turns and unhooks the rods from the frame; the rods drop to the baseboard, but cannot fall to the ground, owing to the size of the screw-eyes. As the frame is lifted the vertical sheets of glass are allowed to rest against the win- dow pane, and are replaced against the fillet when the operation is finished. The photograph shows the arrange- ment as seen from the front. Two labels are placed beneath each vessel, one giv- ing the name of the plant and the other that of the animal occupant. The sketch illustrates the fittings as seen from one end. Diseases are not the only thing that are contagious. Courage is contagious. Kindness is contagious. Manly integrity is contagious. All positive virtues with red blood in their veins are contagious.— Henry Van Dyke. It were happy if we studied nature more in natural things; and acted accord- ing to nature, whose rules are few, plain and most reasonable.— William Penn.

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