PUKFVCE. Vll 



iiig inanj' ex([uisite plioto,L;'raplis of tlui i-linvactei'i^tic lialiitats of various 

 s[iecies, Ijiit li}' his active liel}) in wurkiui;' (jitt tlio iiiulliiscan iaiina of 

 Ivela.ii(l, and interesting (jtliers in tlie same good work. 



T(j the manj' otlier helpers and good wishers wlio liavc so consistently 

 assisted me at every opportunity, and whnse hel}> is in every case 

 acknowledged in its approiiriate place in the text, 1 desire to ex[iress 

 my sincere thanlcs and heartfelt ap[)reciation of their Idnduess, and can 

 on!}' hope that the residtant volume now completed will tn some degree 

 realize the hopes and expectations firmed regarding it. 



jojix ^y. '\\\\]A)\i. 



North (_-Juanc;k, IIousfhrtii, 

 Leeds, JA-c. Jl, IWO. 



