four to six, while so far as it has been possible to ascer- 

 tain, there is ver^' little mention of any larger set than 

 six eggs. The following data relate to a set of seven, 

 collected by the writer near Wooster, Ohio, May 22, 

 1891. 



The nest was situated in a piece of woods on the 

 swampy lowlands along Killbuck creek. It was exca- 

 vated twenty-four feet from the ground in the outer (or 

 under) side of the remaining stub of a dead limb. It 

 was six inches deep, with a diameter at the entrance of 

 31/2x31/4 inches, narrowed near the bottom of the cavity 

 to 31/4x2 inches ; apparenth'- to avoid breaking into an 

 abandoned woodpecker's excavation, from which even 

 then it was separated b\' only a very thin partition. 



The eggs exhibited a remarkable difference in size, 

 as will be seen from the following measurements, viz. : 

 .81X.65, .80X.63, .77x.63, .77x.62, .71x.59, .67x.53, 

 .55x.49. They were all in varj'ing stages of incubation ; 

 the four largest being approximately one-half incu- 

 bated ; the fifth in size, about one-fourth ; the two 

 smallest being nearly fresh. This variation in the in- 

 cubation of eggs in the same nest, has been, in the case 

 of Dryohates puhescens, observed by the writer in 

 also another instance ; but so far at least as maybe 

 inferred from the accounts of the nesting of the species 

 published by other observers, it does not seem to be a 

 common occurrence. 



On the Unusual Abundance of Habia Ludoviciana 

 IN Wayne County, Ohio, by H. C. Oberholser, 

 Wooster. 



In Wayne county the Rose-breasted Grosbeak is 

 ordinarily a common summer resident, but throughout 

 the breeding season of 1890 it was exceedingly and un- 

 usually abundant. During the months of May and 

 June of that year, there were found by the writer with- 

 out special search, within four or five miles of Wooster, 



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