1846 BRITISH ASSOCIATION 41 



an examination of its blood. The result was a short 

 paper read at the following meeting of the Associa- 

 tion, 1 which showed that in the composition of its 

 blood this lowly vertebrate approached very near the 

 invertebrates. 



1 " Examination of the Corpuscles of the Blood of Amphioxus 

 lanceolatus," British Association Report, 1847, ii. p. 95, and 

 Sci, Memoirs, i. 



