164 BERTRAM G. SMITH. 



EXPLANATION OF PLATE. 



All the figures are camera drawings from preserved material. Figs. 16-19 are 

 magnified about three diameters, the remaining figures about four diameters. A and 

 B indicate upper and lower hemispheres respectively. The small letters serve to 

 identify lines which cross the equator. 



FIGS. 16-18. Eggs laid during night of September 7-8, preserved September 9 

 at 2 P. M. 



FIGS. 19 AND 20. Eggs found September 7 at 10 A. M., preserved September 8 

 at 9 A. M. 



FIG. 21. Egg laid September 6 at 6:30 P. M., preserved Septembers at 8:30 

 A. M. Lateral view. 



FIG. 22. Egg laid during night of September 7-8, preserved September n at 10 

 A. M. 



FIG. 23. Egg found September 7 at 10 A. M., preserved September 10 at 8 A. M. 



FIG. 24. Egg laid September 6 at 6:30 P. M., preserved September 8 at 8:30 

 A. M. 



