-~12={ 
iod for 30 individuals was 20.7 days, the maximum period being 25 days 
and the minimum 18 days. The average number of days in the different 
stages is as follows: First instar, 4.07 days; second instar, 5.1 days; 
third instar, 3.37 days; fourth instar, 4.37 days; and fifth instar, 
5.8 days. Sixteen of the adults were females and 14 were males. The 
host plant was Erigeron philadelphicus L.*** The average incubation 
period for 225 eggs was 10.32 days, the maximum being 14 and the minimum 
9 days." 
Emergence of boll weevils in cotton fields.--M. T. Young, Tallu- 
lah, reports as follows on field plat tests: "Plant examinations to de— 
termine the rate of boll weevil emergence in cotton fields were begun 
on May 10. A number of cotton fields were selected at various dis— 
tances from favorable or unfavorable hibernation quarters in such a man— 
ner that the series as a whole would represent the average weevil emerg— 
ence for this locality. These fields were examined in the usual manner 
at weekly intervals." The highest figures were obtained for the week 
ending May 30, when 654 weevils were found on 34,600 plants, or 53 plants 
per weevil. "This is probably the greatest emergence that has occurred 
at Tallulah in many years." 

aes | See eeatiaei Cot 
tions," by G.-L. Smith and others, Tallulah, “lof the active weevismueus 
the 70 hibernation cages were discontinued on April 30 and on May 2 
the daily removal of all weevils emerging in these cages was begun. 
* * * the emergences of weevils in Series 19 for the two types of shelter 
and three dates of installation are compared. * * * it is seen that 
a larger number of weevils emerged during the period from May 16 to 
51 than from May 1 to 15. “Alsoy’ that’ during the period May “lL vomiaa 
810 weevils emerged from the 10,000 installed on October 15, as com— 
pared with 824 from the 10,000 installed on October 31, and 1,722 from 
10,000 installed on November 14. More than twice as many weevils have 
emerged from those installed November 14 than from those installed Oc-— 
tober 15 or October 31, and the number emerging from the two October 
installations is practically the same. The number of weevils emerging 
from the cages located in the timber is much less than that in the open 
field. Exactly twice as many weevils have emerged from the leafage 
shelter as from the moss shelter. The difference in emergence from the 
Spanish moss and cornstalk shelter in the open field is very little." 
Note to foregoing item.--This is the first report on the new plan 
of hibernation tests which were authorized during the fall of 1931, 
and it brings out one of the points there in mind, namely, that to get 
any Significant picture of weevil survival in such cage tests it is 
desirable to begin stocking cages at the time when the weevils are 
normally entering hibernation, which is usually in November or later, 
depending on the season. It has also eliminated the error of interpre-— 
tation which undoubtedly has resulted from the practice hitherto of 
removing active weevils beginning with March, whenever, as a result of 
a bright, warm day, a little activity was exhibited. In these experi- 
