166 RIicHMOND, Lacépféde’s ‘ Tableaux.’ Aout 
EXPLANATION OF PLATE IV. 
All of these feathers are from the humeral tracts of specimens of 
Lagopus lagopus. 
Fig. 1. Juvenal Plumage (Amer. Mus. No. 26169, 2, Sept. 5). 
“2. Preliminary first Winter Plumage (from same specimen as 
Fig. 1). 
«3. Preliminary first Winter Plumage (Amer. Mus. No. 45195, no 
data). 
“ 4andi1. Supplementary first Winter Plumage (Amer. Mus. No. 
26889, 2, March, and Amer. Mus. No. 26162, ¢, Sept. 26). 
5. First Nuptial Plumage (Amer. Mus. No. 26168, g, July 22). 
G8 Ge oe Gu Ge) 8 26174, 6 5 June:s): 
7 and 8. First Nuptial Plumage (Amer. Mus. No. 26172, 2, July 15). 
“ -g. First Nuptial Plumage (Amer. Mus. No. 26170, 9, June 8). 
10. Preliminary second Winter Plumage (from same specimen as 
Fig. 6). 
EXPLANATION OF PLATE V (PHOTOMICROGRAPHS ). 
Fig. 1. Neossoptile of Natal Down attached to tip of Juvenal Plumage 
feather (Amer. Mus. No. 26179, June 29, ‘12 days old”) 
from humeral tract of Lagofus lagopus. ( X20.) 
«2. Neossoptile of Natal Down (J. Dwight, Jr., No. 2044, 9, October 
5) from chin of Colznus virgintanus. (X20.) 
FURTHER NOTES ON LACEPEDE’S ‘TABLEAUX.’ 
BY CHARLES W. RICHMOND. 
IN PRESENTING some notes on the date of publication of the 
above paper in ‘The Auk’ (Oct. 1899, 325), I stated that Lacé- 
péde’s bird genera, as well as several credited to Cuvier, should 
be properly quoted as “ Lacépéde, in Daudin, Traité,”’ etc., in- 
stead of “ Mém. de 1’Inst. III, 1801,” assuming that a certain pre- 
liminary paper (in quarto), containing these genera and supposed 
to have been published in 1799, could not be found. In this I 
was mistaken, for before the appearance of the October ‘ Auk’ I 
received a letter from Mr; Sherborn announcing the discovery of 
a copy of this rare tract, which has recently formed the basis of a 
second communication to ‘ Natural Science’ (Sherborn, Nat. Sci., 
Dec., 1899, 406-409). 
The full title of this tract, quoting from Mr. Sherborn’s ac- 
count, is 
