500 University of California Publications in Zoology [VOL. 11 



1912b. Methods of estimating the contents of bird stomachs. Auk, 29, 

 449-464. 



1912c. Eeview of Bryant's "The relation of birds to an insect out- 

 break in northern California during the spring and summer 

 of 1911. Condor, 14, 45-46. 



1913. Index to papers relating to the food of birds. U. S. Dept. Agric., 



Bur. Biol. Surv. Bull., 43, 1-69. 

 MERRIAM, T. A. 



1896. How birds effect the farm and garden. Forest and Stream, 47, 



103, 123, 141. 

 .MINOT, CHAS. A. 



1911. The method of science. Sci., 33, 119-131. 

 NASH, CHAS. W. 



1909. The birds of Ontario in relation to agriculture. (4th ed.), Ont. 



Dept. Agric. Bull., 173, 1-75, pis. 

 PEABODY, P. B. 



1897. Song notes and nesting habits of the western meadowlark. 



Osprey, 1, 139-141, 1 fig. in text. 

 PALMER, T. S. 



1899. A review of economic ornithology. U. S. Dept. Agric. Year- 

 book, 1899, 259-292. 

 PEARSON, T. G. 



1909. Some common birds on the farm. N. C. Dept. Agric., Special 



Bull., Supp. Sept. Bull., 1909, 1-28, 5 figs, in text. 

 1913. Economic value of birds. Craftsman, 23, 432-438. 

 PENNOCK, CHAS. J. 



1904. Some of our useful birds. Dela. State Bd. of Agric. Bull., 5, 



1-16, 6 figs, in text. 

 PERRIS, E. 



1880. Birds vs. insects. (Translated by S. A. Forbes.) Amer. Entom., 



1, 69-72, 96-100. 

 POCOCK, E. I. 



1893. Further notes and observations on the instincts of some com- 

 mon English spiders. Nature, 49, 61-63. 

 POULTON, E. B. 



1887. The experimental proof of the protective value of color and 

 color markings in insects in reference to their vertebrate 

 enemies. Proc. Zool. Soc. London, 1887, 191-274, 5 tables. 

 1890. The colors of animals (Kegan Paul, Trench, Triibner & Co., 

 London), xiii + 360. 



1898. Natural selection, the cause of mimetic resemblance and com- 



mon warning colors. Jour. Linn. Soc. London, Zool. Ser., 26, 

 558-612, pis. 40-44. 



1908. Essays on evolution (Clarendon Press, Oxford), xlviii -+- 479. 

 PRAEGER, WM. E. 



1899. Birds in horticulture. Trans. 111. State Hort. Soc., New Ser., 



33, 1-11. 



