Seeds 67 
pores, receiving and discharging moisture, which keep them 
cool; while woolly pubescent leaves are much warmer. An 
Irishman once called the mullein a canton flannel ivy. Note 
the difference of temperature between the leaves of the Clema- 
tis paniculata, Lilium speciosum album and Physostegia as 
compared with those of the Lychnis coronaria, Anchusa Barre- 
liert, Helianthus mollis, and Rudbeckia. I do not know that 
it can be laid down down as a general rule, but it is certainly 
true of many plants, that those with rough, woolly leaves suffer 
more from heat and drought than those with smooth glossy 
ones. 
Speaking of one sense supplementing another reminds me 
of my belief that the sense of sight is next-door neighbor to the 
sense of touch, and each sits on the other’s doorstep at times 
to receive impressions. The green foliage of the tall late cos- 
mos and the tender green depths of a locust-tree give me the 
same pleasurable sensation that I get when touching fur or a 
silky velvet. I have seen square flat heads on certain people 
that feel rough and harsh to the eye. 
