WILLIAMS: HABITS OF SCUTIGERELLA. 
479 
to time >but usually remaining quiet. On the 6th of June it could be 
seen by the motion of the bodies that they were in the process of hatch¬ 
ing. It seems to be a matter of difficulty to escape from the eggshell 
and whether the anterior end or the posterior end freed itself from the 
shell first, the free end waved and writhed frantically for some hours 
at least in the efforts of the animal to extricate itself. As a matter of 
fact some specimens in this nest freed the anterior end of the body 
first and others freed the posterior end first. 
I do not know how many of the 8 eggs hatched. On the next day, 
June 7th, four larvae were to be seen with the mother, moving about 
near the empty egg envelopes and others may have wandered into 
crevices in the earth. On this day one young one was taken for 
Fig. C. 
purposes of preservation and on moving the glass the mother fled. 
By June 8th all the rest of the young had disappeared and nothing 
further was ever seen of them. 
Again, in 1905, many individuals were brought in during the last 
week of April. On April 28th one was found asphyxiated in a bubble 
of air not as long as the animal itself. On May 9th an egg was found 
isolated on the wall of a dish, on May 11th another egg, and on May 
18th a group of 4 eggs unlike in size and a separate single egg were 
found in this same dish. On May 28th two separate eggs were found 
in another dish and by the following day three more were found scat¬ 
tered about that dish. By this time both the group of eggs and the 
single egg in the first dish were covered with fungus and two or three 
da vs thereafter those in the second dish were also moldy. On June 
2d an egg was found in a third dish but it came to nothing. These 
dishes with their 24 occupants were inspected at short intervals from 
this time on until August 12th when the last one died. All this time 
there had been no more eggs laid. Sections of the adults made in 
