Hon. John Lewis Childs. M.A.O.U., Cooper Orn. Club 

 etc., Floral Park, N.Y. Has private museum, including 

 1100 species of N.A. birds' eggs in full sets, (600 nests 

 with sets) and 1200 species of North American birds mount- 

 ed, with many fine groups showing old and young, and 

 different phases of plumage. Mr. Childs is also interest- 

 ed in certain other objects of natural history, as mounted 

 mammals, fish, reptiles, insects, minerals and shells, 

 which are included in his extensive North American col- 

 lections. He is the publisher of the Warbler and the 

 Mayflower, and while birds and eggs are his particular 

 hobby, the publisher of this Catalogue hopes he is violat- 

 ing no confidence in adding that he is a world known au- 

 thority on floriculture, and has been widely known for 

 many years as having the most extensive floral gardens, 

 and the largest business as a florist in the world. From 

 flowers to birds is a natural step, and Mr. Childs is an 

 enthusiastic Ornithologist, and Oologist. He does not 

 collect sets in large series, but is always desirous of ob- 

 taining the best examples of any species, as to coloration 

 and marking or large number of eggs to a set, his aim be- 

 ing to have the best representation possible of everv known 

 bird's egg in the A.O.U. list. 



Thomas H. Jackson, West Chester, Penn. Eggs for 

 exchange. Specialty, Raptores; also photographs, lan- 

 tern slides of young Raptores and nests and eggs for sale 

 or exchange. 



A. W. Johnson, Oologist and Ornithologist. Care of E. 

 Bennis, Beach Hill, Astley-Bridge, England. 



Herbert Massey. Oologist, Ivy Lea, Didsbury, near 

 Manchester, England. 



WANTED, In exchange, ornithological photo- 

 graphs and good sets of certain birds of prey. 



J. D. SORNBORGER, Cambridge, 

 ioi Hammond St. - - Mass. 



ERRATA 



On page 9 Mr. Dille's plan for field data should have 

 been this size: 



Name 



Set Mark Date 



No. Eggs Incubation 



Location 



Nest J - ■ ■-•- - 



92 



