ity, and it would appear that this habit may be characteristic of 

 the species. Our previous knowledge of the eggs of this Titmouse 

 rests solely upon the account by Mr. Sennett of a single example 

 found in the Lomita nest above referred to. Mr. Ricksecker's cabi- 

 net contains a. set of the eggs of this species which were taken in Co- 

 mal County, Aprils, 1878. These eggs measure, respectively, .74 by 

 .58; .78 by .57; .76 by .59, being thus considerably larger than Mr, 

 Sennett's specimen, the measurements of which are given as .60 

 by .48. They are regularly ovoid in shape, and handsomely 

 marked with reddish-brown upon a clear white ground. Over the 

 general surface these markings are^istributed in fine spots, but « 

 about the larger end bold, strongly defined blotches occur, form- 

 ing a nearly confluent ring. Four egg^ of a set in Mr. Werner's 

 collection are nearly similar in shape and general appearance, but 

 the markings are finer and the ring of color about the larger end 

 less apparent. This nest, together with the eggs and parent birds, 

 is beautifully preserved in a section of the limb in which it was 

 found. The entrance hole is of large size, and the entire cavity is 

 apparently a natural one. The nest proper is placed about six 

 inches below the exterior opening." 



38. LOPHOPHANES INORNATUS. 



PLAIN TITMOUSE. ** 



39. LOPHOPHANES WOLLWEBERI. 



WOLL WEBER'S TITMOUSE. ** 



40. PARUS MONTANUS. « 



MOUNTAIN CHICKADEE. " 



"Although not entirely unknown, the eggs of this species have 

 been so rarely met with and identified that a brief mention of a 

 fine set that has recently come into my possession may not be with- 

 out inXerest. This set was taken by Mr, Charles A. Allen in the 

 mountains of Placer County, California, June II, 1879. The nest 

 had been constructed in an old hole of a Fza^s albolarvatus in a 

 decaying pine stump. The opening was about seven feet from the 

 ground, extended four inches horizontally, and was over twelve 

 inches in depth. The female could not be induced to leave the 

 nest, even after the whole side of the stump had been cut away 



