tiov. 1 6, 1888.] 



SCIENTIFIC NEWS. 



499 



merely for the service of the station, it was considered 

 that four large tanks would be sufficient for observing 



Fig. 2 shows the arrangement of these tanks, placed 

 on iron frames in front of the large windows. The 



Fig 1. — Marine Zoological Station at Algiers. 



the animals in almost normal conditions, and that it 

 would be better to reserve the remaining space for tanks 



corners of the room, which are of course darker, are 

 occupied by two stages of flat tanks. The large room 



Fig 2. — Laboratory of the Marine Zoological Station at Algiers. 



glazed on all four sides, in which specimens which it was 

 desirable to have always at hand could be kept. 



on the ground floor, which serves also for a lecture- 

 room and a laboratory, has a perfectly symmetrical 



