602 Proceedings . 



Reference to the Productive Zones in the Thames Goldfields, 

 New Zealand," by Professor Park ; with plans and section. 



4. " Notes on the Formation of Zones of Secondary Enrich- 

 ment in certain Metalliferous Lodes," by Professor Park. 



5. " Notes on the Origin of the Metal-bearing Solution con- 

 cerned in the Formation of Ore-deposits," by Professor Park. 



6. " On the Occurrence of Gold at Harbour Cone," by C. 

 N. Boult, B.Sc. ; communicated by Dr. P. Marshal] ; with maps. 

 (Transactions, p. 425.) 



Addresses by Professor Benham and Mr. 0. M. Thomson on 

 " Modern Work on Evolution " were delivered. 



Dr. Benham dealt chiefly with some of the modern factors of evolution, 

 such as mutation, isolation, and the experimental study of variation. 



Mr. Thomson discussed certain modern work on heredity, especially 

 " mendehsm." 



Fifth Meeting : 12th September, 1905. 



Mr. J. C. Thomson, President, in the chair. 



New Member. — Mr. J. W. Henton. 



Dr. Hocken, referring to a proposal to introduce English 

 owls into New Zealand, stated that these birds preyed on mice, 

 voles, &c, and only rarely attacked small birds. 



Mr. F. W. Payne gave a lecture on " Irrigation in Central 

 Otago." 



Papers. — 1. " Entomologv in Southland," by G. Howes, 

 F.E.S. 



2. " Some New Species of Lepidoptera^ by G. Howes, F.E.S. 

 (Transactions, p. 510.) 



Sixth Meeting : 17th October, 1905. 



Mr. J. C. Thomson, President, in the chair. 



Exhibits. — Dr. Marshall exhibited some fossil ferns from the 



Hokonui Hills, near Gore, some of which belonged to the Jurassic 



period, and others of an earlier geological time. 



Some of these showed fructification on the fronds, and indicated a 

 genus found in New Zealand at the present day. Others were of a kind 

 not now found here. 



Dr. Marshall exhibited some polished bowenite — a kind of 

 transparent greenstone much more rare than the greenstone 

 commonly found in the colony. 



