96 BOTANY. 
purslane. Then make careful notes of diurnal and nocturnal positions 
of the leaves of as many plants as possible. Where it is possible to 
do so. it is recommended that photographs be taken of the waking 
and sleeping states of plants. Careful sketches, at least, should be 
made. . 
(g) Select a symmetrically grown fuchsia, place it in a window, 
and note the rapidity with which the leaves and stems turn toward 
the light. 
(h) Germinate various seeds in a window, and observe the helio- 
tropism of the seedlings. 
() Grow a strawberry-geranium (Saxifraga sarmentosa) in a hang- 
ing basket or pot in a window, and observe that the dependent runners 
bend away from the light. 
(j) Germinate beans, and after the radicles have protruded a centi- 
metre or two fasten the seeds in such a way (under a bell-jar) that the 
radicles point directly upwards. Observe that the roots soon begin 
bending towards the earth. 
(k) Grow a few sensitive-plants in pots for study of irritability. 
Seeds may be procured at any seed-store for a few cents, and are 
easily grown in a warm room. 
