Show hairs of rock plants in a certain issue ot the english publication knowledge there is a short paper on the hairs of rock plants by ac E the glandular hairs of the saxifrage are described the three types of hairs dealt with are the allay or woolly babra ot the edelweiss and the like the hairs which form a felted covering to many leaves as in Aubre and alys sums and the glandular which may occur alone or in conjunction with one of the other types the hairs are mainly protective against atmospheric conditions but the glandular hairs may in some cases serve to attract insects |