ILLUSTRATIONS OF ORNITHOLOGY. 
At the dispersion last year of Captain W. J. Boys’ Ornithological 
collections, in the sale room of Messrs. Stevens in London, a con- 
siderable number of birds were purchased by Mr. Strickland and 
myself, many of which have proved highly interesting. Lor the 
following three descriptions and illustrations of part of that col- 
lection, we arc indebted to Mr. and Mrs. Strickland. The descrip- 
tions will show the interest belonging to some of the species. The 
illustrations will present the results of the first experiments in 
Papyrography as applicable to Ornithology. 
PERICROCOTUS ERYTHROPY GIUS, Jerdon. 
Turdus speciosus, var. B. Lath., Gen. Hist., vol. y. p. 97. — Cawnpore Fly- 
catcher, vol. vi. p. 176, pi. 98.* Muscicapa erythropygia, Jevd., Madras 
Journ. Lit. and Sc., vol. xi. p. 17. Perierocotus erythropygius, Blyth, 
Journ. As. Soc. Beng., vol. xv. p. 310. No. 216 of Captain Boys’ Col- 
lection. 
“ Among the valuable zoological collections lately brought to 
England by Captain W. J. Boys, the result of many years’ resi- 
dence in the upper Gangetic provinces of India, was an extensive 
series of birds, amounting to between 500 and 600 species, some of 
them new and many of them rare. The bulk of this collection has 
been dispersed by auction ; but it may be useful to the scientific 
student to be informed, that a nearly complete set of these birds 
has passed into the possession of E. Wilson, Esq., and is destined 
to be added to the magnificent museum now being formed by his 
public spirited brother at Philadelphia. This collection is the more 
importty^ from the specimens being ticketed with numbers, refer- 
ring to a valuable mass of MSS. notes, made by Captain Boys, the 
substance of which will, it is hoped, be ultimately added to our 
zoological literature. 
“ The three species which I now propose to illustrate, will serve 
as samples of the treasures of Captain Boys’ collection, and though 
the species are not new, yet they are very little known, and two of 
them have never yet been figured. The genus Perierocotus, though 
somewhat insulated, is undoubtedly a member of the family Musci- 
capidce , and of the sub-family Muscicapince, and is but remotely 
