THE GOLD-BANDED PAPER-MAKER 151 



to keep up interest in the wait for nearly two 

 hours, before she began preparing for her 

 day's work. She would remain entirely mo- 

 tionless for many minutes at a time, then she 

 would look into a few cells and be quiet for a 

 long period again. Finally about ten-thirty 

 o'clock she flew away and was gone but a few 

 moments, when she began looking about, ap- 

 parently in search of an empty cell. Finding 

 one by pushing her head in, she doubled her- 

 self very shortly and pushed her abdomen into 

 it. She then remained quiet with her ovi- 

 positor near the bottom of the cell for several 

 minutes. At last she moved out and again put 

 her head in to see that the newly laid egg was 

 in its proper place. Afterward she again be- 

 came quiet for some time. Although the 

 Naturalist nearly missed his train because of 

 his long wait at the nest, he felt amply repaid 

 for the time. 



A number of eggs were noted, to ascertain 

 the time required for hatching. Most of them 

 hatched in just eighteen days. When the 

 weather warmed a bit some hatched in sixteen 

 days. Since the weather was cool and the 

 temperature below normal, it is probable that 

 more time was required than would be the 



