40 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



the ten tlioiisaud on May 4tli to over fifty-four millions 

 on May 16th, is most ra})id. The most abundant species 

 were Chaetoceras dehilc and (It. sociale. On Mav 16th 



Fig. 16. Biildulphia mobiliensis {a) and B. sinensis (6). 

 the first of these species reached thirty millions and the 

 second 12 millions in the standard fifteen minutes' haul 

 with a small net one foot in diameter of mouth. 



Extended Investigation ur the West Coast. 

 In last year's report 1 pointed out that our 

 knowledge of the minute floating life or " plankton " of 

 the western coasts of the British Islands was very 

 incomplete because of a great gap extending from the 

 North of Scotland down to the Irish Sea — a gap which 

 neitlier the I nlci'national Observations, on tlie one hand, 

 nor those of the Scottisli and the Irish Authorities, on 

 the other, seem to fill up. 



With a view to obtaining some (hiia iliat may, in 

 part at least, bridge this gap, and possibly throw light 



