ON THE MARINE BIOLOGICAL STATION AT GBANTON, SCOTLAND. 93 



not attached to it.' Mr. Ramage was working at Granton for a little more 

 than a year, from June 1886 to July 1887. During the latter month he 

 left in order to proceed to the island of Fernando Norotiba, as arrange- 

 ments had been made through me that he should join a scientific expedi- 

 tion to that place, organised by Mr. Ridley, of the botanical staff of the 

 British Museum. 



Mr. R. Vallentin came to Granton on January 1, 1887, and worked 

 there, with occasional visits to Millport, until July. 



Two students of Edinburgh University, Messrs. McBryde and Kerr, 

 spent some time in March and April in studying at the Granton 

 laboratory. 



Mr. J. Arthur Thomson, lecturer on zoology in the Extra-Mural Medi- 

 cal School of Edinburgh, with Mr. Muri'ay's permission, arranged to give 

 a vacation course in zoology at the Granton laboratory to school teachers 

 and others in August and September. The class met on August 1. It 

 had been arranged that T should assist in conducting this course, but I 

 was unable to be present after the first two days, having accepted the 

 post of naturalist at the Plymouth laboratory. The class consisted of 

 eleven persons, and is still meeting daily at Granton. 



Mr. Bury, an undergraduate at Cambridge, began to carry on 

 zoological studies at Millport in the middle of July, and is still working 

 there. 



My own connection with the Scottish marine station is now ter- 

 minated, but I still take a strong interest in its prosperity, and may state 

 here my conviction that the existence of the Granton laboratory is of the 

 greatest importance in exciting a healthy interest and activity in zoologi- 

 cal science in Edinburgh. J. T. Cunningham. 



Report on the Physical Worh of the Station. 



In connection with the physical work of the Scottish Marine Station 

 I have, since last meeting of the Association, carried on regular tempera- 

 ture cruises on the Clyde sea area at intervals of about one month. On 

 two occasions Mr. John Murray extended these excursions to the deep 

 lochs of the west of Scotland. In many of the observations the fauna 

 was studied in relation to the physical conditions of the water, and much 

 information of a new and interesting nature has been collected. 



Observations on the fresh-water lakes in Scotland have been continued. 

 I have acted with Mr. Cunningham in his operations regarding the oyster 

 culture experiment at Preston Pans, and inaugurated observations on the 

 temperature of the sea margin there. 



All the physical observations made in connection with the station are 

 being prepai'ed for publication. The whole of the temperature work up 

 to July 9, 1887, is passed for press, and will appear in the forthcomino- 

 ' Journal of the Scottish Meteorological Society.' The observations of 

 density will be given in a later number. 



The improved thermometers and water-bottles were exhibited at the 

 Exhibition of Marine Meteorological Instruments held by the Royal 

 Meteorological Society in March last, and several have subsequently been 

 supplied to zoologists in various parts of the country for use on dredging 

 excursions. 



My principal papers since last year have been — (1) ' On the Physical 

 Conditions of Water in the Clyde Sea Area,' read to the Philosophical 



