20 THK VICTOKIAN NATURALIST. [Vol. XXIV. 



By Mr. F. Pitcher. — Fresh and dried specimens of Elodea 

 canadensis, Michaux (syn. Anacharis alsinastrum, Babington), 

 North America, found growing in the Japanese garden lake 

 in Treasury Gardens, Melbourne. 



By Mr. J. Stickland. — Sap movements in Elodea canadensis, 

 under the microscope. 



After the usual conversazione the meeting terminated. 



EXCURSION TO RINGVVOOD. 



The geographical excursion to Ringvvood, on Saturday, 13th 

 April, attracted about seventeen members. The chief object of 

 the trip was to study a case of stream re-adjustment or capture 

 shown by the upper course of the MuUum Mullum or Deep 

 Creek. This feature was described in the Victorian Naturalist, 

 vol. xxiii. (1906), p. loi, so that it is only necessary to briefly 

 indicate the route taken by the members to examine the present 

 stream system and consider the past arrangement. A beautiful 

 clear afternoon provided a splendid series of views of the distant 

 mountains and the intervening country. The Warrandyte road 

 was followed for about three-quarters of a mile across the wide 

 open valley of the upper Mullum Mulluu). A turn to the left 

 was then made to follow a branch road skirting the side of 

 Pinemont Hill. This prominent elevation, which rises to about 

 600 feet above sea-level, was ascended. An extensive panorama 

 in all directions was much enjoyed, and the conditions of the 

 position were favourable for the observation and discussion of the 

 Mullum Mullum stream " piracy," whereby part of the drainage 

 area of the Dandenong Creek basin has been added to that of the 

 Yarra. Steps were next turned westwards towards Mitcham, and 

 the descent to the Mullum Mullum on the way enabled the party 

 to note the change in the character of the valley to a more gorge- 

 like character, where the old water parting has been cut through. 

 While returning through the paddocks towards Mitcham, the little 

 orchid, Eriochilus autmnnalis, was found in bloom ; also the 

 eucalypt, E, stuartiana, which formed a very handsome object. 

 A few spikes of Epacris impressa were also picked, and the fern 

 Lindsaya linearis was noted. — E. O. Thiele. 



EXCURSION TO COBURG. 



About eleven members met on Saturday, nth May, and proceeded 

 to study the geological features of the Merri Creek, near Coburg. 

 As it was stated that rifle matches were being held on the eastern 

 side of the Pentridge Stockade, the causeway and columnar basalt 

 in that vicinity could not be visited. Observations were, there- 



