Proceedings. 39 © 
Toadside between Normandy and Wanborough Station—Epilo- 
bium Lamy, F. Schultz, Lathyrus Aphaca, L., and Trifolium 
agrarium, L., the two latter of course only casuals. 
Miss E. Sargant lectured on 
Tun CaLL AnD THH NUCLEUS. 
Miss Sargant stated that both animal and vegetable bodies 
are of cellular structure. Growth takes place both by division 
of cells and by increase in the size of cells. An examination 
of the root of a young bean proved that growth was most rapid 
at the tip. Near the apex of the root the cells were in the 
most active state of cell-division. 
Most of the contents of the cells are transparent. Both the 
nucleus and protoplasm are transparent. Hence to see what 
‘is passing, it is needful to use coloured chemicals. 
-No nucleus can be seen in the living cell when about to 
divide, but it has been proved that the nucleus itself divides 
and controls division. 
When the structure is at rest, it is more difficult to examine 
than when division is going on. As the cell increases in size 
the cloudy fluid disappears ; the nuclear membrane disappears, 
and the coil of ribbon broadens and changes into lengths, 
shorter, thicker, and straighter. Fibres form in bundles from 
the protoplasm, the rods being regular in number, in Lilium 
Mastagon 24 to each cell, the number of spindle-fibres being 
the same. The fibres pull the rods apart till they bend and lie 
out. Two nuclei are formed connected with the spindle-fibres, 
which are thickened in the middle; the thickened fibre forms 
__ the new cell-wall. All this takes place in the middle of thick 
protoplasm. 
