Recently published Ornithological Works. 213 
publications of 1905 are given in alphabetical order. In 
many cases the Families, for which reference to the Syste- 
matic division should be made in order to obtain further 
particulars, are indicated. The total number of “ titles” in 
the List is 742, the corresponding number n the ‘ Record’ 
for 1904 was 679. 
The “ Subject-Index,” which forms the second portion of 
the ‘ Record,’ refers to the works on each subject by the 
numbers attached to them in the list of “ titles.” 
In the third (“Systematic”) division of the ‘Record,’ 
which extends to no less than 48 pages, the information 
acquired on each group of birds in 1905 is collected together, 
and all is arranged in systematic order according to the 
author’s well-known classification. It thus becomes easy 
for the student of any particular group to ascertain what 
additions and corrections have been made to our knowledge 
of it during the year in question. We need hardly point out 
that this is of great assistance to the working ornithologist. 
We are pleased to be able to state that it has been settled 
that from the beginning of this year (1906) the ‘ Zoological 
Record’ of the Zoological Society of London (of which 
Dr. Bowdler Sharpe’s article forms a section) shall be 
amalgamated with the zoological portion of the Interna- 
tional Committee’s ‘Catalogue of Scientific Literature,’ to 
which we have called attention on a former occasion (see 
our remarks in ‘The Ibis,’ 1904, p. 645). The result will 
be that the waste of money and energy caused by having the 
same piece of work done by two different sets of Recorders 
and separately published will be saved by this praiseworthy 
arrangement. 
24. Sharpe and Chubb on a new Tree-Partridye. 
[On a new Species of Arborizola. By R. Bowdler Sharpe and Charles 
Chubb. Ornis, xiii. p. 183.] 
Arboricolu graydoni, sp. nov., from Borneo, “ has hitherto 
been called A. charltoni, but seems to be distinet,”’ and is 
named after Mr. P. N. Graydon, who sent the specimen to 
the British Museum from the Lamag Estate in Sandakan. 
