354 Address of A. R. Wallace at the Glasgow Meeting. 
tee’s reductions of tidal observations for several places in differ- 
ent parts of the world, allow us to admit to have possibly taken 
place. The assumption of a fluid interior, which Newcomb 
suggests, and the flow of a large mass of the fluid “from equato- 
rial regions to a position nearer the axis,” is not, from what I 
have said to you, admissible as a probable explanatioy of the 
remarkable acceleration of rotational velocity which seems to 
Art. LXIL—Address at the Glasgow Meeting of the British Ass0- 
ciation, by ALFRED RussEL WALLACE, President of the See- 
tion of Biology. 
Introduction. 
THE range of subjects comprehended within this Section if 
so wide, and my own acquaintance with them so imperfect an@ — 
observations, of some interest to biologists, and at the same ee 
not unintelligible to the less scientific members of the Associa: 
sister-science, which has been termed Surface-geology, OF bot 4 
sculpture. In the older geological works we learnt much i - 
strata, and rocks, and fossils, their superposition, conto tions 
chemical constitution, and affinities, with some general err 
of how they are formed in the remote past; but we ofte? 
