406 Herr Badeker’s and Dr. Brewer’s Oological Works . 
the existence there of many of the f Desideratissima 3 of our col¬ 
lections. It does not appear that any egg—certainly not of any 
so-called “ British Bird 33 *—is as yet figured in this work, of 
which one Oologist or another in this country has not examples* 
often of the best possible authenticity. This brings us to make 
a few remarks on the progress which egg-collecting has made 
within the last few years among ourselves. 
We have now before us the cover of Part V. of Mr. Hewit- 
son’s second work (the first edition of the “ Eggs of British 
Birds”), bearing date “ 1st November, 1843,” on which that 
gentleman printed a list of what were then, as far as he knew, 
‘ Desiderata 3 to English collections. This list contains 52 species, 
10 of which he subsequently obtained in time to figure them in 
that edition. Of the remainder, 15 more were represented in 
his third work, completed in 1856 f. From this, however, he left 
out one—very properly considering that, though he had before 
included it, the specimen figured was not sufficiently authentic. 
This made the real increase 14, and the number still required 
28. Of these at least 8 are now in British cabinets, and one is 
a doubtful, not to say a bad species, which thus reduces the 
number of ( Desiderata 3 to 19. To this number 16 more must 
be added, to allow for those species which have of late been 
included with sufficient reason in the British list, or respecting 
the eggs of which, though they may have been figured, justifiable 
doubts may be entertained. Thus we obtain a final result of 
35, as probably representing the existing deficiencies in the 
Oology of these islands. These 35 are, in our opinion, as 
follows:— 
Swallow-tailed Kite. 
Snowy Owl. 
White’s Thrush. 
Gold-vented Thrash. 
Dalmatian Regulus. 
Parrot Crossbill. 
European White-winged Crossbill. 
American White-winged Crossbill. 
Nutcracker. 
MacQueen’s Bustard. 
* The European White-winged Crossbill can hardly be said to be an ex¬ 
ception, for the egg represented (PI. xx. fig. 10), though “ beglaubigt 
achte,” was laid in a cage. 
t We must not be misunderstood to mean that Mr. Hewitson’s third 
edition comprised only 15 more species than his second, but that these 15 
were included in his list of £ Desiderata ’ above mentioned. 
