G. GENERAL NATURAL HISTORY AND ZOOLOGY. 219 



some to be used with fresh and some with salt water. The 

 conservatory is also 160 feet long, 40 feet wide, and 30 feet 

 high ; is intended as a lounge and resting-place, and is orna- 

 mented with a great variety of marine plants and small 

 aquaria. A series of shallow tanks is to be erected on the 

 north wall for the purpose of illustrating the culture of sal- 

 mon. The whole basement of the building is occupied by 

 reservoirs for the storage of sea-water, which is pumped up 

 as required into the tanks, and an arrangement has been de- 

 vised by which a constant circulation of the water is kept up. 

 The work on this aquarium was commenced in July, 1870, 

 the first brick laid February 2, 1871, and the entire cost of 

 the work was $250,000. It is under the direction of Mr. John 

 Keast Lord, well known by workers in science, both in Amer- 

 ica and Europe, as an excellent practical naturalist, and as 

 having added much to our knowledge of the zoology of 

 Northwestern America. While in this country he occupied 

 the position of naturalist to the British division of the North- 

 western Boundary Survey, and published a work upon the 

 natural history of Vancouver's Island and British Columbia, 

 based upon an extended collection made by him, and now 

 deposited in the British Museum. He has been lately en- 

 gaged in explorations in Egypt, Arabia Petraa, and the Red 

 Sea, where he has gathered large quantities of scientific ob- 

 jects. He has been for some time closely connected with 

 Land and Water, and has contributed many articles upon 

 deep-sea fisheries, etc., to that paper. 22 A, August 10, 1872, 

 123. 



ZOOLOGICAL OBSERVATORY AT NAPLES. 



Recent letters from Dr. Anson Dohrn speak of the contin- 

 ued progress and success of the great zoological station at 

 Naples, and of the generous assistance afforded to it by the 

 Italian government. Mr. W. A. Lloyd, the director of the 

 aquarium at the Crystal Palace, Sydenham, has been instruct- 

 ed by the directors to proceed to Naples, to offer what as- 

 sistance he can to Dr. Dohrn. 



RECEIPTS OF THE BERLIN AQUARIUM. 



As an illustration of the success which generally attends 

 well-conducted zoological gardens and aquaria, we may state 



