NOTES AND EXHIBITS. 281 



is the cause of hydatids in the human subject, and which is 

 developed as a tapeworm only in the dog ; in the hydatid stage 

 these are probably innocuous to the human subject, but further 

 experiments are being carried out with a view of throwing addi- 

 tional light on the life-history of this tapeworm. 



Professor Stephens exhibited a collection of fossils from 

 " Sturt's Stony Desert," close to the Grey Ranges. Among them 

 were specimens of Ammonites biflexuoides, Belemnites sp., besides 

 other mollusca, all found at a depth of over 100 feet. Also a 

 specimen of petrified wood, part of a tree met with in sinking a 

 well on the Dunlop station, 50 miles north of the Darling, at 300 

 feet below the surface ; Dendrites from Wittabreena, 30 miles 

 north of Mount Brown ; Gypsum (selenite) from the Grey 

 Ranges, where high cliffs of this substance occur ; fossil wood 

 from the same place ; shell-breccia from the district between the 

 Paroo and Warrego, found at a very great depth, &c. He also 

 exhibited a rare fungus from Springwood, both in the dry state 

 and by drawings. It was regarded by Mr. Tenison- Woods as 

 probably a species of Stereum. Also a specimen of Opal in reni- 

 form nodules, obtained by Mr. Gilliatt from a well in the Paroo 

 district. The matrix is understood to have been clay, presumably 

 a deposit from hot springs. 



Mr. Whitelegge exhibited a living and vigorous specimen of 

 Plumatella obtained in the Botany swamps. It appeared to be 

 identical with P. repens, Linn. Also dried specimens of Nitella 

 gelatinosa from Randwick, one of the Characese which had not 

 been previously recorded from this district. 



Mr. Asher exhibited a "holy dollar" and several "dumps," as 

 an interesting illustration of the early history of the colony, and 

 read the proclamation of Governor Macquarie, determining their 

 values in the standard currency. 



Mr. Macleay read the following letter from Mr. Meyrick 

 relative to the caterpillar exhibited by him (Mr. Macleay) at the 

 last meeting : — 



