96 Rhodora [May 
in late September, in the low wet meadows of the central valley. 
Specimens of this plant from Franklin have been verified at the Gray 
Herbarium.— R. W. Woopwarp, New Haven, Connecticut. 
A New Coron Guipe.'— A new color guide by Dr. Robert Ridgway, 
the well known ornithologist, is practically an entirely revised and 
much enlarged edition of his earlier nomenclature of colors (1886) 
with 17 plates and 186 colors as against 53 plates and 1115 colors in 
the present work. The color work was done by A. Hoen & Co., of 
Baltimore and is much more uniform in different copies than in the 
earlier edition, which was hand stenciled from several mixings of the 
same color; while in the present work each color for the whole edition 
of 5000 copies was prepared from one lot of color and uniformly coated 
at one time. While the present work does not contain quite as many 
colors as are included in the more bulky French work by Rene Ober- 
thur, the gradation between colors is more uniform, and the colors 
are on dull instead of glossy-surfaced paper as in that work, which 
gives a slightly different, but more natural color effect, and no metallic 
color effects are included. The proportion of darker broken colors 
is greater, which will appeal especially to the ornithologist and mam- : 
malogist, although the work is designed to be equally useful to botan- 
ists, florists, artists, dyers, merchants, and chemists who require a 
standard color scheme. The colors have evidently been standardized 
to a degree of accuracy not hitherto attained in any color chart. 
The colors are one-half by one inch, arranged on a heavy gray paper 
in three vertical columns of 7 colors each. The plates are divided 
into 6 series. In plates I-XII the middle row of horizontal colors 
represents the 36 colors and hues most readily distinguished in the 
spectrum, although it is said to be possible to distinguish 1000. Above 
these colors each succeeding horizontal row of colors is the spectrum 
color mixed with 9.5; 22.5; and 45 per cent of white. Below they are 
mixed with 45; 70.5 and 87.5 per cent of black. ` Plates XIII-XXVI 
represent the colors in plates I-XII dulled by 32 per cent of neutral 
gray; plates XXXII-XXXVIII are dulled by 58 per cent of neutral 
gray; plates XXXIX-XLIV are dulled by 77 per cent of neutral gray; 
plates XLV-L are dulled by 90 per cent of neutral gray; and plates 
LI-LIII are dulled by 95.5 per cent of neutral gray. If the color to 
be matched is darker than in the first series of plates turn to the 
same position in the succeeding 5 series of plates until one is found that 
is dark enough to match. "This is readily done by referring to the 
numbers at the head of the vertical columns and to the letters at the 
left of the horizontal rows. In numbering and lettering the rows of 
1 Color Standards and Color Nomenclature. By Robert Ridgway, [3447 Oakwood 
Terrace, N. W.], Washington. Published by the author 1913. Pp. 1-44; pls. 
I-LIII. $8.00. 
