1917 | Swarth-Bryant: White-fronted Goose in California 213 
As regards most of the measurements given in the above descrip- 
tion, it is apparently impossible to ascertain the exact manner in 
which they were taken. Hence it is difficult to use them in making 
comparisons. One of Hartlaub’s measurements, (‘‘Longit. rostri a 
Fig. A. Anser albifrons albifrons, adult male, no. 21922, Los Banos, Merced 
County, California; natural size. 
Fig. B. Anser albifrons gambeli, adult male, no. 27573, West Butte, Sutter 
County, California; natural size. 
fr.’’?) may safely be assumed as corresponding to length of culmen 
as we have measured it. This measurement, as given for his A. 
Gambelli, translated into millimeters (58 mm.), is within the range 
of variation of our larger goose. It can not be applied to the bill of 
the smaller variety. 
