48 FISH CULTURE' 



cured leave for the Society from the Earl of Ports- 

 mouth, and Martin T. Smith, Esq. M.P., to take ova 

 from the Test — three or four other places, where I 

 had obtained leave, having failed us, from various 

 causes ; and Mr. Glover, a practical pisciculturist, of 

 considerable experience, and certainly the best mani- 

 pulator I ever saw, was sent down to take the trout 

 ova. He returned from his first trip with some 

 13,000 or 14,000 ova, and subsequently obtained as 

 many more. Part of these were placed in the slate 

 troughs in the greenhouse, and part in the boxes in 

 the meadow. The Clitheroe salmon were also in the 

 meadow; the Galway in the greenhouse. A small 

 parcel of ova of white trout also came in from Hunin- 

 gue, not in good order ; and a smaller one still of the 

 ombre chevalier, or charr of Geneva ; and these last 

 were in very indifferent condition. Subsequently, we 

 obtained some 6,000 or 7,000 more of trout ova from 

 Samuel Gurney, Esq. of Carshalton ; and by the aid 

 of these, the boxes and troughs were as fairly tenanted 

 as was convenient. 



The temperature of the water in the troughs, when 

 they were first filled, was as low as 38°. It rose gra- 

 dually, as the spring advanced, until it reached 48° 

 and 50°. Of course, the atmosphere of the greenhouse 

 was much warmer than the outer air, and the slow- 



