Letters, Extracts, and Notes. 
715 
opportunity allowed, on a new and greatly improved edition 
of my f Nomenclature of Colors 7 (1886). I am happy to be 
able to announce that, after twenty years of necessarily 
intermittent labour, this most difficult and tedious task has 
at last been accomplished, and that arrangements have been 
made for its early publication, the Plates being already in 
process of reproduction. 
The new work will present nearly 1350 colours, arranged 
scientifically and reproduced by a method which guarantees 
a faithful copy of the originals as to hue and tone—in 
fact, absolute uniformity throughout the entire edition,— 
and at the same time as great a degree of permanency as 
is possible with pigments now known to colourists. The 
standard of the original work is, of course, retained and 
as many additional colours are named as practicable. 
Obviously it is impossible to provide names for all of so 
large a number of colours; but those which are left unnamed 
may be easily designated by an exceedingly simple system 
of symbols, as may also the intermediates, both as to hue 
and tone. This renders the work practically equivalent to 
the actual presentation of more than 5300 named or other¬ 
wise designable colour-samples. In short, the work has 
been so carefully planned and executed that I have no doubt 
as to its adequacy to meet all the demands of naturalists and 
others who have use for a comprehensive colour-nomen¬ 
clature and standards. The new edition will be of the same 
size (except for a slightly greater thickness, there being 64 
plates instead of the 10 of the old edition), and will be sold for 
about $5.00 net, or only $1.00 more than the original work. 
I am. Sirs, yours &c., 
Washington, Robert Ridgway. 
Sept. 9th, 1909. 
The B. O. U. Expedition for the Exploration of Central 
New Guinea. —Mr. Walter Goodfellow, the Leader of the pro¬ 
posed a B. O. IJ. Jubilee Exploration of the Charles-Louis 
Mountains,” returned to England on Aug. 6th with a good 
collection of living Paradise-birds, amongst which were 
3b 2 
