372 



NATURAL SCIENCE. 



Nov., 



the northern side there are two windows, of which the shutters fall 

 inwards and form two large work-tables (Fig. 2). At night, or when- 

 ever required, these shutters can be turned upwards and the apartment 

 readily converted into a sleeping room. The walls are conveniently 

 fitted with shelves and hooks, and there is a small stove for warming. 

 The fishing apparatus is shown in the third photograph (Fig. 3). 

 In this figure, no. i represents the net for surface-captures, made of 

 thick silk, with two rings of 20 cm. diameter (one brass, the other 

 cane), and one ring of 10 cm. diameter fixed to the neck of the bottle. 

 No. 2 is a net on a bamboo rod for shore fishing and for depths of 



Fig.' 2. — View of the Interior of the Bohemian portable Zoological Station. 



one metre. No. 3 represents a deep net with a simple arrangement 

 for closing at any given moment. It consists of two parts 30 cm. in 

 length, with an inner conical part leading to the bottle. No. 4 is a 

 net for dredging mud. Nos. 5 to 8 are respectively a measure, 

 thermometer, and two metal sieves for washing mud. No. 9 is a 

 weight used in measuring depths, and no. 10 is a holder for glasses. 

 Nos. II to 13 will be recognised as an aquarium and water-cans, 

 while no. 14 is a plan of a lake. A common small hand-net is also 

 used, and there is a light boat for the service of the station, but these 

 are not shown in the illustrations. 



