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THE ZOOLOGIST. 



amongst the earliest and best known, it may not be out of 

 place briefly to record the impression of a first inspection in 

 May, 1861. They are situated on the ground of the Earl of 

 Mansfield, and were constructed in 1854 by subsidies from the 

 leading proprietors of the Salmon-fishings on the Tay, each 

 paying in proportion to the extent of his fishings. They are 

 economically constructed, the chief expense, indeed, being the 



Fig. 3. — Apparatus fitted up in connection with a bath for hatching 

 Salmon: a. small block-tin supply-pipe, with brass nozzle and stop-cock; 

 6. green glass vessel about 11 in. in diameter; c. wooden rest for vessel; 

 d. basin of zinc into which the water overflows from glass vessel ; e. over- 

 flow pipe into fixed basin ; /. escape-pipe leading out of a small hole in 

 window-pane to a leaden roof ; g. bracket supporting apparatus ; o. dotted 

 lines indicating the perforated zinc band for retaining the young fishes. 



furnishing of the clay wherewith to make the porous sandy soil 

 of the ponds impermeable. There is ample ground for exten- 

 sion, and the supply of pure water from Stormontfield mill-lade 

 above them is abundant. These features have subsequently 

 been taken advantage of by considerable additions since the 

 period mentioned. 



