Hecently published Ornithological Works. 107 
accurate and concise will not^ we trust, deter other ornitholo¬ 
gists from following out Mr. Harvie Brownes suggestions. 
At the same time we cannot forbear expressing our dislike to 
the use of symbols for this kind of investigation, as being at 
once an extra tax upon the memory and too inelastic to be of 
much service in the long run. 
Mr. Harvie Brown has worked out his subject with much 
patience ; and we hope that the knowledge that future obser¬ 
vations will certainly modify, probably to a considerable 
extent, the conclusions he here draws, will not discourage him 
from following up his investigations. 
8. Barboza du Bocage^s ^ Ornithology of Angola.^ 
[Ornithologie d’Angola. Ouvrage publie sous les auspices du Mini- 
st^e de la Marine et des Colonies par J. V. Barboza du Bocage. Pre¬ 
miere partie. Boyal 8vo, pp. 256. Lisbon: 1877.] 
It is well known to students of West-African ornithology 
that Professor Bocage has long paid special attention to the 
birds of the Portuguese possessions in Africa, as is shown by 
the lists that have appeared from time to time in the ^ Jornal 
de Sciencias da Academia de Lisboa.’’ These lists were 
drawn up from collections made in Angola by Senhor An¬ 
chieta, who has worked industriously at the birds of that 
district for upwards of ten years. 
Much additional knowledge of the birds of Angola has been 
derived from the labours of Mr. Monteiro, who for some time 
collected in that country. These and other materials Prof. 
Bocage has worked up into the present book, which thus forms a 
very complete resume of the birds of Angola, and an important 
addition to the literature of African birds. Great care has been 
bestowed upon the compilation of the book. The synonymy 
and references are full, but not overloaded, as is too often the 
fashion, with useless references. On the contrary, these seem 
to have been selected with judgment for their bearing upon 
the special subject to which they apply. A full description 
(perhaps too full) of each species is given, and a paragraph 
containing the details of the distribution of every bird, and 
other matter. 
