° 1918 J Lloyd, Extraction of Fat from Bird-Skins. 169 



Effect of Immersion in Ether on Feather Pigments. 



Conclusion. 



The method given will absolutely remove fat from bird-skins. 

 Damage caused by decomposition which has already occurred 

 cannot be remedied, but an application of this method will stop 

 all further decomposition due to fat. By removing dirt adhering 

 to the grease, the true colors of the plumage can be seen and studied. 



Valuable specimens, type specimens and specimens of extinct 

 species can be protected by this process and will have their existence 

 assured for a much greater period of time. 



My sincere thanks are due to Mr. J. H. Fleming for providing 

 specimens for the work and for deciding whether or not color 

 changes occurred as a result of the action of the solvent. 



