536 William A. Hilton. 



removed the eggs soon dry up, but if they are placed in a moist 

 location and kept moist, they continue to develop for a time as well 

 without the female as with. The small cavities under logs or stones 

 where the female is half coiled about the eggs, are not far from 

 water, usually near a small brook or spring, and in many cases are 

 well hidden under piles of stones or deep down in the loose earth 

 under some completely buried log or stone. In other cases the eggs 

 and females may be found in partly deserted creek beds where the 

 water seldom comes except at flood time. Here they may be under 

 some of the slabs of shale which have been split off from the bed 

 rock by frosts, but still remain in position. The first time one of 

 these shale slabs is lifted, a half dozen females with eggs may appear. 



Although eggs seem to be found most abundantly from the last of 

 June to the middle or last of July, much depends upon the season. 

 The most favorable time for egg-laying seems to be during rather 

 dry weather, and the rapidity of development seems to depend largely 

 upon humidity and temperature. 



The eggs were found in a single bunch or in two bunches close 

 together, in no case 'were they found wrapped about the body of the 

 female. Almost always they were just within the semi-circle 

 formed by the female's body. The eggs are quite large, 3.5 mm. in 

 diameter, entirely without pigment and each one separately inclosed 

 by jelly-like membranes which adhere with great persistency. Two 

 membranes closely surround the egg and in preserved specimens may 

 be separately removed, while outside of these is a much thicker, more 

 jelly-like substance, this last quite uniformly covers the egg except 

 at one point where it is thickened and prolonged into a sort of stalk 

 by which the egg is attached to the similar prolongation of the outer 

 envelope of the other eggs, so the bunch as a whole, as Wilder aptly 

 states it, "is much like a bunch of toy balloons held in the hand of a 

 street vender," although usually the mass of eggs is more compact 

 than this, for in some cases the elongate portions of the outer envel- 

 ope, instead of meeting at a rather common center, attach them- 

 selves to other places. 



The eggs are clear white without pigment and with a very slight 

 tinge of yellow. They are usually about 3.5 mm. in diameter and 



