IV 
observed there, as one of the most valuable contri- 
butions to a comparatively obscure branch of our 
Science that has appeared of late years. We trust 
that Mr. Clarke may find other opportunities of doing 
good vrork of the same character, and that he will 
obtain the support which he so well deserves, while 
we may assure him that we shall be always glad to 
receive information as to his future labours in this 
attractive fi.eld of enquiry. 
P. L. S. 
A. H. E. 
3 Hanover Square, 
London, W., 
October 1st, 1902. 
