XXVIil, ABSTRACT OF PROCEEDINGS. 
Shell was laid. Remarks were made by Mr. HARPER, 
Acting-Professor CoTTON and Dr. ANDERSON. 
Dr. A. L. DU Tort’s reply to Mr, HK. F. PITTMAN’s criticism 
of his paper “‘The Problem of the Great Australian Artesian 
Basin,”’ (This Journal, LI, 1917, pp. 135 — 208, ibid., pp. 431 
— 434), and Mr. PITTMAN’s rejoinder were read, and remarks 
made by Acting Professor CoTTON and Messrs. HARPER, 
POOLE, HAMMOND, and CAMBAGE. 
Monthly Meeting, 9th October, 1918. 
Mr. J. KH. CARNE in the Chair. 
Ten members and two visitors were present. 
EXHIBITS: 
1. Acting Professor CoTrron:—Slate from Burrinjuck 
with bands of pyroclastic intrusions. 
2. Mr. MATHIESON :—Cyathophyllum Shearsbyi, showing 
budding. 
3. Mr. W. R. BrowneE:—(a) Slickensided ore, North 
Mine, Broken Hill; (b) Encrusting secondary galena, North 
Mine, Broken Hill; (c) Pyromorphite crystals, Block 14 
Mine, Broken Hill. 
4. Mr. W.S. DunN:—Martinia glabra, Russia, showing 
spines. 
5. Mining Museum :—(a) Platinum-bearing diorite, Wal- 
halla, Victoria; (b) Wolfram and associated minerals, 
Bismuth Mine, Torrington; (c) Obsidian, Japan; (d) Graphic 
granite, Japan; (e) Rich tin ore (60-70), Carpathia Mine, 
Ardlethan; (f) Molybdenite vein in decomposed slate, near 
Deepwater. 
Mr. L. F. HARPER, F.G.S., read a paper “‘ Intake Beds of . 
the Artesian Basin other than those of Mesozoic Age.” 
Mr. HARPER advanced the hypothesis that an appreciable 
volume of the water contained in the New South Wales 
