125 
B.—Umbel of the variety maritima, consisted of 42 umbellules. 
This produced a total of ......,... 2,109 seeds. 
Of these there were good.......... Ahi eae 
if bad ae! ste etudBre 5 
The good seed exceeded the bad by 1,433. 
The proportion of good to bad was as 42°14 to 8-04. 
C.—Umbel of wild plant in neighbourhood was formed of 
58 umbellules. 
This produced atotal of ......... . 3,229 seeds. 
Of these there were good.......... 2.667 '}5 
Giving an excess of good over bad of 2,105 seeds, or a 
proportion of 45°98 to 9°68. 
Thus the prevalence of good seed was in the order of C.B.A. 
The results, though of an approximate character, sufficiently show 
that this handsomer and more fully developed plant, under the 
circumstances of its life, was behind the relative productive 
standard of the naturally grown and more mutilated ones. It 
should be noted that the umbel in each case was taken from the 
part where the greatest vital energy is said to exist, the axis. 
It only remains to record that the plant died in October, 
having lived about a year. As it faded the branches curved 
inwards upon the axis contracting to more than half its former 
expansion. A one-sided inclination of the whole plant towards 
the side of the greatest amount of direct light was also noticed. 
XX. 
WOODLICE, CENTIPEDES, AND SNAKE 
MILLIPEDES. 
BY 
MR. G. S. SAUNDERS, F.L.S. 
Read AprRIL 14th, 1887. 
The paper was illustvated by Diagrams and Microscopie slides. 
Though I have joined these creatures together in the title of 
this paper, I have not done so with any intention of suggesting 
that the Woodlice are nearly allied to the others, for such is not 
the case; but rather to show their differences, as many persons 
