Auckland In&titute. 705 



long, and not thicker than an ordinary penholder. Its colour 

 is a beautiful light-green, and it is as near as possible trans- 

 parent." 



2. " New Species of Coleoptera, Part I.," by Captain T. 

 Broun. 



3. "Is it expedient to make Vaccination compulsory?" 

 by E. H. Bakewell, M.D. {Transactions, p. 634.) 



Dr. Challinor Purcbas considered that vaccination should be re- 

 tained and be made compulsory ; but ho was not an advocate for the 

 transference of lymph from the human subject. By using calf-lymph, 

 which could now be easily obtained in New Zealand, the risk of the 

 inoculation of syphilis or lej^rosy alluded to by Dr. Bakewell could be 

 obviated. 



Fourth Meeting : lOtli August, 1891. 



Professor F. D. Brown, President, in the chair. 



Mr. E. Withy gave a popular lecture, illustrated by 

 diagrams and models, on " The Stability of Ships : its Prin- 

 ciples made clear by Models and Diagrams." {Transactions, 

 p. 653.) 



At the conclusion of the lecture a vote of thanks was moved by the 

 Mayor (Mr. J. H. Upton), and carried by acclamation. 



Fifth Meeting: 21th Awjust, 1891. 



Professor F. D. Brown, President, in the chair. 



Neio Members. — J. Mitchell, C.E., Professor Pond. 



The President drew attention to a number of recent addi- 

 tions to the Museum, which were arranged on tables in the 

 lecture-room for exhibition to the meeting. Among them 

 was a fine collection of minerals received in exchange from the 

 United States National Museum, and a series of rocks and 

 minerals illustrating the geological structure of the Thames 

 Goldfield, presented by Mr. James Park, Lecturer at the 

 School of Mines, Thames. Particular attention was drawn to 

 the skin of the rare flightless duck of the Auckland Islands 

 {Nesonetta aucklandica) , presented by Sir W. L. Buller. 



Papers. — 1. " On the Occurrence of Native Zinc at Hape 

 Creek, Thames," by James Park, F.G.S. {Transactions, 

 p. 884.) 



2. " New Species of Coleoptera, Part II.," by Captain 

 T. Broun, F.E.S. 



3. " Brake-fins : a Proposed Appliance for the Better 

 Handling of Ocean Steamers," by the Rev. P. Walsh. 

 {Transactions, p. 641.) 



45 



