ANTARCTIC PLANKTON. 189 



on board a whaler. Hence the smallness of the collections. 

 Mr. Bruce mentions that the time they were actually in 

 the ice was from December 12th, 1892, to February 

 •26th, 1893. 



Referring to the mysterious presence of several fresh- 

 water animals in one of the bottles sent to me labelled 

 " Antarctic," Mr. Bruce thinks it probable that the bottle 

 in question was part of his Falkland Island fresh -water 

 collection. He also explains the occurrence of a number 

 of tropical species of Copepoda in another bottle (loc. cit. 

 p. 296) by the fact that they were collected by tow-net in 

 latitude 4° 02' N., longitude 23° 02' W., as the missing 

 notes, supplied to the Dundee Museum with the collection, 

 showed. 



Isaac C. Thompson. 



