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vividly illustrate the variability of the plant in this respect. 

 A graph formed from these numbers gave a curve of variability 

 which was made the text of an interesting lecture on the 

 subject of variability in general and the question of the 

 limitations of its control. Another graph compiled by the 

 speaker showed the variations in the number of ray florets in 

 a large number of specimens of the common ox-eye daisy 

 (Chrysanthemum leucanthemum) growing near Mount Lofty. 

 In this case the graph showed that there were two apices, 

 probably pointing out that there were really two species 

 included, varying only in the number of ray florets. The 

 speaker also exhibited specimens showing the ravages of the 

 streak disease of the winter-flowering sweet pea. 



The excursion of July 20 was taken in the neighbourhood 

 of the Black Hill. Mr. E. H. Ising (the leader) spoke on the 

 heath-like plants, particularly dealing with Epacris and the 

 various species of Styphelia. By means of specimens and 

 blackboard diagrams the peculiar adaptations of these plants 

 were explained and the construction of the floral organs 

 shown. The botanical characteristics of the styphelias were 

 illustrated, and the distribution of the various species touched 

 upon. In addition to the lecture the leader was able to 

 identify and speak upon a large number of species of native 

 flowers which had been collected by members in this 

 locality. 



Members visited Upper Sturt on August 17, under the 

 leadership of Mr. A. G. Edquist. By special permission the 

 party was enabled to follow the railway line into the National 

 Park. The members were greatly pleased to find that the 

 authorities were carefully protecting the native flora, along 

 the railway. Here many interesting native plants were noted, 

 especially Hardenbergia monophylla. No collections were 

 made, but at various points the leader dealt with the different 

 plants seen. At a later stage Mr. Edquist delivered an 

 address on the wattles. Specimens brought by the lecturer 

 were handed to members, who were able to compare the foliage 

 and flowers of the various species, the speaker giving a short 

 account of each species, with particular reference to its suit- 

 ability for planting. A general discussion on the acacias 

 followed. 



At the evening meeting held on August 20 Dr. C. Fenner, 

 F.G.S., gave an interesting lecture on "Volcanoes and Vol- 

 canic Products," illustrated by a fine series of lantern views. 

 With the help of the episcope the speaker was able to show 

 specimens of the various products of volcanic activity in the 

 shape of lavas, pumice, and volcanic bombs. Some fine 



