[15] The division is repeated in the same way in each cell so that ultimately four pollen spores are formed from each of the original mother cells.

[16] For gradual dehydrating, the specimens may be placed successively in 30 per cent, 50 per cent, 70 per cent, 90 per cent, and absolute alcohol.


INDEX.

[A][B][C][D][E][F][G][H][I][J][K][L][M]
[N][O][P][Q][R][S][T][U][V][W][X][Y][Z]