THE 

 LONDON, EDINBURGH and DUBLIN 



PHILOSOPHICAL MAGAZINE 



AND 



JOURNAL OF SCIENCE. 



[THIRD SERIES.] 



SEPTEMBER 1848. 



XXV. On the Influence of Temperature upon the Distribution of 

 the Fauna oftheJEgeanSea. By Lieut. Spratt, R.N., F.G.S.* 



THE publication by the British Association of the valuable 

 and highly interesting report on the fauna of the iEgean 

 by Professor Forbes, induced me to make some observations 

 on the temperature of that Sea at different depths, so as 

 to ascertain how far temperature might act as an influencing 

 agent, in the distribution of the fauna, throughout the several 

 regions into which he has divided it. 



During the summer of 184-4 and succeeding summers, I 

 was employed on the survey of the shores of the Grecian 

 Archipelago, and had opportunities of visiting several parts of 

 the iEgean Sea. During favourable weather I made the ob- 

 servations alluded to. The following are some of the localities 

 selected to show the comparative uniformity of the results at 

 distant localities, as well as in different distances from the coast 

 and sea-bottom. 



* Read at the Swansea Meeting of the British Association, August 1848, 

 and communicated by the Author. - 



Phil. Mag. S; 3. Vol. 33. No. 221. Sept. 184,8. N 



