LINNEAN SOCIETY OF LONDON". 6g 



2. " Notes on the Habits of Australian Hymenoptera." By 

 H. L. Eoth. (Communicated by Sir John Lubbock, Bart., Pres. 

 L.S.) 



3. " Singular Mode of Eeproduction in Atliynum Fllix-fcemina, 

 var. cJarissima. By Charles T. Druery. (Communicated by Dr. 

 J. Murie, F.L.S.) 



December 4th, 1884. 



"William Carruthees, F.E.S., Vice-President, in the Chair. 



The Minutes of the last Meeting were read and confirmed. 



The Hon. P. Stanley Dobson, LL.D., William A. Haswell, 

 Esq., M.A., Greorge William Oldfield, Esq., M.A., Dr. George 

 William Parker, Michael Cresae, Esq., M.A., Vet. -Surg. Thomas 

 Jonathan Synionds, W. A. Talbot, Esq., and Joseph Henry 

 Thompson, Esq., were elected Fellows. 



Mr. W. T. Thiselton Dyer exhibited: — (1) Examples of leaves 

 of Sagittaria monfevidensis, under different modes of cultivation, 

 the changes thus induced as regards size and general facies being 

 most remarkable, so much so that they might be deemed widely 

 separate genera. The small leaves were from a plant raised 

 from seeds collected in Chili by Mr. John Ball, F.E.S., and 

 sent to Kew in 1883, and grown in a pot half submerged in the 

 iV^w^j/^dEa-tank. The enormously large leaf and spike were those 

 of a plant raised from seeds ripened at Kew and sown in spring 

 1884. When strong enough the plant was planted in a bed of 

 muddy soil, kept saturated by means of a pipe running from the 

 bed to the N ympJicea-tn'nk. (2) A special and peculiar instru- 

 ment called a " Ladanisteriou," from Crete, it being a kind of 

 double rake with leathern thongs instead of teeth, and used in 

 the collecting of Gum Labdanum, a drug now dropped out of 

 modern pharmacy. The instrument in question was procured 

 for the Kew Museum by Mr. Sandwith, H.M. Consul in Crete. 

 (3) A collection of Marine Algse from West Australia, brought 

 to this country by Lady Broome. 



The following ])apers were read : — 



1. " Eelationship of Indian and African Freshwater Fish- 

 Faunas." By Dr. Francis Day, F.L.S. 



2. " On HeterolepidoUis grandis, a Fossil Fish from the Lias." 

 By James W. Davis, F.L.S. 



3. " On the Growth of Trees and Protoplasmic Continuity." 

 By Alfred Tyler, F.G.S. (Communicated by the Secretary.) This 

 last communication was illustrated by diagrams and transparent 

 photographs enlarged on the screen by the lantern and lime-light. 



