for the last-named position, by presentation of life collections; viz.,. Rowland G. Hazard, 

 Frank C. Willard, and William Leon Dawson). We shall be glad to explain the details 

 to those who wish to join this cooperative movement. 



(5). By concerted effort focussed upon specific problems. By means of an ever 

 widening circle of friends and collaborators, we find ourselves already able to achieve 

 results of genuine comparative value. Questionnaires and cooperative calls will be 

 issued to the members of our clientele from time to time; and the materials thus se- 

 cured will be studied and deposited and the results published. An abstract of this 

 year's program follows, and you are urgently requested to cooperate. ' 



WILL YOU HELP US DO SOME SPECIAL WORK FOR THE SEASON 



OF 1919? 



Desiring to obtain material and information illustrating the scope and character of 

 supposed local or geographic variation in birds' eggs, the Museum of Comparative 

 Oology earnestly requests you to cooperate in one or all of the following lines of in- 

 vestigation: We want from each patron a series of not less than six nor more than 

 ten normal, or "straight run" sets of each species selected, taken in a single season and 

 in one locality. The material contributed will remain in the custody and ownership 

 of the M. C. O.; the contributors will receive full and grateful public credit for their 

 work; and the results will be published at our expense whenever materials and conclu- 

 sions warrant. Will you please designate the species most convenient for your study, 

 and pledge us your assistance in respect to them this season. Notice that we have 

 selected only common species, and those which may be laid under tribute with least 

 loss or inconvenience. 



California Jay (straight run imperative). 



Blue Jay (6 sets sufficient unless high local variation develops). 



Crow, Corvus brachyrhynchos and subsp. (6 sets only). 



Cowbird (no limit). 



Dwarf Cowbird (no limit). 



Red-winged blackbird, Agelaius phceniceus and subsp. (4 sets sufficient unless in- 

 teresting local variation develops). 



Brewer's Blackbird (limit of local variation, as well as straight run desired). 



Purple Grackle, Quiscalus quiscula and subsp. 



Boat-tailed (or Great-tailed) Grackle. 



English Sparrow. 



Vesper Sparrow (4 sets only). 



Song Sparrow, all varieties (4 sets only). 



Cliff Sparrow (6 sets only, if uniform; but limit of variation as well as straight run 

 desired). 



Loggerhead Shrike, Lanius ludovicianus and subsp. (4 sets only). 



Cactus Wren (4 sets only, if uniform; limit of variation, if high). 



House Wren (4 sets only). 



IN MEMORIAM-R. G. H. 



By William Leon Dawson. 



In the death of Rowland Gibson Hazard, which occurred at his Santa Barbara home, 

 "Dial House," on the 23rd of January, 1918, the Museum of Comparative Oology lost 

 its most trusted counsellor and warmest friend. A lover of birds, and a collector from 

 liis boyhood, Mr. Hazard had never given way before his hobby, but had lived a singu- 

 larly active, useful and successful life. He was a man of scholarly attainments as well 

 as of the broadest culture, and he achieved eminence in nearly every sphere of his man- 

 ifold activities — financial, social, academic, literary, scientific, political, religious. Honors 

 came to him unsought, .and a list of clubs, boards, committees, directorates, and societies 

 of which Mr. Hazard was an influential member, would fill a separate page of biography. 

 It is, however, as a patron of science' and a devotee of c/ology that we arc Inst called 

 upon to i emember him, 



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