81 



Mr. C. H. Haeris read a paper on "Variations of tlie Com- 

 pass in South Australia, with some remarks on Terrestrial 

 Magnetism." 



Ordinary Meeting, September 2, 18S4i. 

 H. T. Whittell, M.D., President, in the chair. 



EXHIBITS. 



"William Haacke, Ph.D., showed an albino specimen of the 

 grass paroquet — Euphenia multicolor — the colour of the general 

 plumage being changed into sulphur yellow ; the colour of 

 forehead, neck, shoulders, and rump changed into bright red. 

 Also a new medusa of St. Vincent Grulf, and several specifi- 

 cally different Idolea from the same waters. Also an ovum 

 found in the pouch of a female echidna, proving that the 

 echidna, although a milk-giving animal, lays eggs which are 

 hatched in the pouch. 



Mr. "W. A. Jones read a paper on the "Eed Grlow," advo- 

 cating the aqueous theory of its formation. 



Mr. Lionel Gtee, C.E., was elected an Auditor for the cur- 

 rent year. 



Annual Meeting, October 7, 1884. 



H. T. Whittell, M.D., President, in the chair. 



Ballot. — Messrs. A. Gr. Abbott, G-eorge Grill, and F. AVheeler 

 were elected Pellows. 



Due notice having been given, it was proposed, seconded, 

 and carried — " That Eule 38 be altered by the substitution of 

 the words ' Public Library, Museum, and Art Gallery' in 

 place of ' South Australian Institute.' " 



The alteration of Eule 37, made at a meeting held November 

 6th, 1883, was also approved. 



exhibits. 



Mr. H. C. Mais, M.I.C.E., showed photographs of sections of 

 wood taken in the United States of America. 



AV. Haacke, Ph.D., exhibited two photographs and dissections 

 of a female Echidna liystrix, in the pouch of which he had found 

 the ovum shown at the last meeting. There was only one large 

 pouch, not two small semicircular fossa?, as seen by Professor 

 Owen. The large pouch evidently acted as an incubator for the 

 ovum, and probably disappeared after the hatching of the young, 

 only two small semilunar fossae being left. He pointed out also 

 that his specimen showed small tufts of hair on the mammary 

 aveola, now discovered by him in several male echidnje, which 

 on being dissected were found to possess unmistakeable rudi- 

 mentary milk glands, thus showing that the generally adopted 



