The OoLOGisT. 



Vol. XXV. No. 3. 



Albion, N. Y. Mar., 1908. 



Whole No. 248 



THE OOLOGIST, 



A Monthly Publication Devoted to 



OOLOGY, ORNITHOLOGY AND TAXl- 

 DEEMY. 



FKAITE H. LATTIN, Fublilher, 



ALBION, N. Y. 



EXNEST H. SHOKT, Editor and Hanager. 



Correspondence and items of interest to the 

 •tndent of Birds, their Nests and GgKS, solicited 

 from all. 



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ERNEST H. SHORT, Editor and Manager, 

 Chill, Monroe Co.. N. Y. 



Hints at Egg Preserving. 



When I was but little more than & 

 boy I once wrote, in the columns of 

 this, our increasingly-favored little 

 bird magazine, several articles under 

 the above sort of caption. For many 



years I had supposed them forgotten 

 as much by all others as they were 

 by myself. Not long since, however, 

 one such article was referred to by 

 one who is now well known. The 

 comment was both appreciative and 

 gratifying. 



I therefore now venture the set- 

 ting down of a few ideas which I have 

 never seen exploited anywhere else. 

 I do so with the statement: that, (as 

 regards but a single one of them), 

 had I known three years ago, what I 

 found out afterwards at cost of cha- 

 grin unbounded, I might have saved 

 intact, a most beautiful set of eggs of 

 the Black Hills form of the Canada 

 Jay. 



First, as regards the use of pancrea- 

 tine in the digesting of embryos: I 

 liresume any school boy might have 

 told, out of his rudimentary knowl- 

 edge of chemistry; that pancreatine 

 is inert at any low temperature. But 

 the writer hereof hadn't sense enough 

 to appreciate this fact until he had 

 lost, through rotting of the egg shell, 

 several valuable sets of Finyon Jay. 

 Pancreatine must hence be set down 

 as of extremely limited value: espe- 

 cially when one is afield. 



Caustic Soda, (or Caustic Potash, 

 the two alkaloids working in just the 

 same way), caused me, on the other 

 hand, regrettable losses in two ways: 

 one through the use of too strong solu- 

 tions; the other through the leaving 

 of the solutions within the egg shell 

 for too long a time. One learns only 

 by costly experiences that for any 

 small egg the caustic solution must be 

 very greatly attenuated; and that it 



