THE OOLOGIST 3^ (^^ H\1 



57 



Lotridge, "Wild Life near Home." The 

 habits of wild animals that frequent 

 the haunts of civilized man. Illustrat- 

 ed by stereopticon views. 



Monday, April 2d. — Edward F. Bige- 

 low, Ph.D., "Roadsides, Fields and For- 

 ests." Recreation in country scenery; 

 plant and animal life on dry upland 

 ground. Illustrated by stereopticon 

 views. The first of a course of three 

 lectures on "Nature Study." 



Monday, April 9th. — Mr. John J. 

 Schoonhoven, "The Sea Beach at Low 

 Tide." Interesting forms of plant and 

 animal life to be found at the water's 

 edge. Illustrated by stereopticon 

 views. 



Monday, April 16th. — Edward F. 

 Bigelow, Ph.D., "Travels in a Swamp." 

 Plant and animal life in meadows and 

 swamps, and nearby ravines, brooks 

 and ponds. Illustrated by stereopti- 

 con views. 



Monday, April 23d. — Subject and lec- 

 turer to be announced. 



Monday, April 30th. — Edward F. 

 Bigelow, Ph.D., "Haunts of Nature." 

 Important facts regarding many of 

 nature's most wonderful productions. 

 Illustrated by stereopticon views. 



The whole is a welf gotten up con- 

 tribution to the subject and mechan- 

 ically splendidly put together. 



BOOKS RECEIVED. 



The Birds of Wyoming; With an Ex- 

 planation of Recent Changes in their 

 Distribution; Economic Aspects also 

 Considered. By B. H. Graves and 

 Ernest B. Walker, published June 1, 

 1913, by the University of Wyoming, 



This is a small pamphlet of 136 

 pages, reviewing all of the birds found 

 in that state; pp. 23-pp. 86, prefaced 

 with an introductory statement and a 



bibliography v^hich refers largely to 

 the publications of the Agricultural 

 and Biological departments. Not the 

 least interesting is a series of thirteen 

 local lists contributed by various pub- 

 lishers in different parts of the state. 



SIVIALL HOLES. 



I read with interest yours concern- 

 ing small holes. Candidly I believe 

 every advanced up-to-date Oologist 

 can drill eggs with just as small holes, 

 — if they wish, — as the one you wish 

 us all to take our hats off to. As I 

 have several sets with holes 1-64 inch 

 or less taken by different collectors 

 and personally taken, I have several 

 sets of Osprey, personally taken; 

 holes in none of them over 1-32 inch. 

 This drill I always use and is obtain- 

 able from any Dental Mfg. Company, 

 or from Dentists, and is sufficiently 

 small for eggs of this size. Is an egg 

 perfectly prepared if drilled 1-64 inch? 

 I doubt it, because it is next to impos- 

 sible to tell if the entire contents have 

 been thoroughly removed from some 

 cggc, — ezpecially the dark colored or 

 heavily marked ones with holes 1-64 

 inch or less. The white eggs of course 

 can be held up to the light and con- 

 tents noticed if not entirely removed. 

 I was at one time a "nut" on small 

 holes and many a set I have lost by 

 trying to remove contents through 

 holes too small (sometimes merely 

 sticking a needle in the side) by eggs 

 exploding or breaking around the 

 edge of hole. 



Now here is an experience I had 

 with a set of Broad-winged Hawk. 

 When I found this nest it contained 

 one egg so I returned at correct time 

 to secure complete set when fresh. 

 I drilled these eggs with holes slightly 

 less than 1-64 inch, or to be more 

 exact, .010 of an inch, and was 1 1-2 

 hours on each egg. I syringed eggs 

 out with water after contents were 

 fully removed and the water oozed 

 through the pores of the shell show- 

 ing plainly that the pressure neces- 



