PROGRESS OF THE SCIENCE. 217 



I also brought the matter under the notice 

 of Dr. P. L. Sclater and the authorities of the 

 Zoological Society, who devoted the entire 

 end of their aquarium-house at the gardens 

 to the demonstration of the science of fish- 

 hatching. The apparatus was ably designed 

 and arranged by A. D. Bartlett, Esq., Resi- 

 dent Superintendent of the gardens. A great 



hatching boxes. Those marked with an * have taken the 

 designs of their apparatus either from Mr.Ponder's establishment 

 at Hampton, or from my boxes in "The Field" window. 



*His Grace the Duke of Argyll. 

 *The Viscount Powerscourt. 

 *The Earl of Monntcharles. 

 *Lady Dorothy Neville. 



S. Gurney, Esq., M.P. 1 



Alfred Smee, Esq. 1 

 *Captain Berkeley, 2nd Life Guards. 

 *J. Baker, Esq., of Bayfordbury. 

 *J. Hibbert, Esq. 

 *S. Hall, Esq., of Farningham. 

 *J. King, Esq., Watford. 



1 These two gentlemen have hatched trout many years suc- 

 cessfully, and have turned the young fish into the Wandle. 



