G. H. F. NuTTAi.i 
461 
Out of 1990 
eggs there emerged 0 larvae 
1680 
2 
2100 
10 
1008 
1 
Totals 6838 
13 
Three ticks laid eggs which were not enumerated and from which 
no larvae emerged. 
In the protocol of Experiment 2, it is stated that the eggs of six 
unfertilized $s were counted, and that larvae emerged from three out 
of six batches of eggs as follows: 
Out of 4830 eggs there emerged 64 larvae 
2340 51 
676 90 
500 0 
100 0 
12 0 
Totals 8458 205 
Eighteen ticks laid eggs which were not enumerated and from which 
no larvae issued. 
Therefore out of a total of 15,296 enumerated eggs there issued 218 
larvae. To repeat, it was only a few of the eggs subjected to the manipu¬ 
lations consequent upon counting which yielded larvae, all the other 
eggs failed to hatch, although they were kept under observation up to 
the 97th-104th day after they were laid. Unfertilized eggs, in the 
great majority of cases, shrivelled up not long after they were laid, as 
is usually observed in such cases. Unfortunately failure attended the 
efforts which were made to raise the artificially produced offspring, Imt 
it is proposed to repeat shortly the experimeirt. I am not aware that 
artificial parthenogenesis has as yet been induced in Arachnoidea. 
