370 NEW BIRDS FROM THE GALAPAGOS ISLANDS— RIDGWAY. vol. xvii. 



Dr. Sclater, indicate a very small bird — smaller, in fact, than the small- 

 est in the series of sixteen specimens from Chatham Island. 



Dr, Sclater's measurements are materially different from those given 

 by Gould, as the following- will show. For convenience of comparison, 

 the fractions of the latter are changed from duodecimals to decimals: 



MeasurenienU of Pyrocephalus dnhius. 



