416 NOTES AND EXHIBITS. 



hour. Both extracts were tested. Suitable controls were made 

 with natural serum of a rabbit, and with salt-solution as is 

 customary in precipitin reactions. When a deposit occurred, 

 whether large or small, the interaction was marked positive; 

 but quantitative differences in the precipitates were not recorded 

 in the table. 



WEDNESDAY, AUGUST 25th, 1909. 



The Ordinar}' Monthly Meeting of the Society was held in 

 the Linnean Hall, Ithaca Road, Elizabeth Bay, on Wednesday 

 evening, August 25th, 1909, 



Mr. T. Steel, F.C.S., F.L.S., Vice-President, in the Chair. 



Mr. Egerton C. Grey, University of Sydney, was elected a 

 Member of the Societ3^ 



The Donations and Exchanges received since the previous 

 Monthly Meeting, amounting to 5 Vols., 59 Parts or Nos., 11 

 Bulletins, 1 Pteport, 6 Pamphlets, and 19 Maps, recei\'ed from 

 48 Societies, ttc, and one Individual, were laid upon lihe table. 



notes and exhibits. 



Mr. D, G. Stead exhibited a living specimen of the curious 

 fish known as " Striated Serpent-head," Ophiocephalus striatas 

 (Rloch), one of five specimens imported from Singapore a few 

 days ago; and he read a note upon the extraordinary branchial 

 structure and amphibious habits of the Ophiocepludi. He also 

 showed an example of a remarkable Brittle Star [Ophiuriuea] 

 {Gorgonocephalus 'A^.) from Coogee Beach, clasped naturall}' round 

 the stem of a species of sponge; together with some small undeter- 

 mined marine worms from one of his aquaria. 



Mr. Froggatt, who had recently returned from a visit to the 

 Solomon Islands, exhibited a large land-crab, Cardisoma sp., 

 which lives in holes in the ground; and is a very great pest in 

 gardens, by reason of its destructiveness to young plants. Speci- 

 mens of a small, bright red snail which is common upon the 

 foliage of plants in the forest-land; the bright red mucus sloughs 



