CONTENTS. 



Page. 



Art. I. — Presidential Address. By J. BT. Maiden, f.l.s., Govern- 

 ment Botanist and Director of the Botanic Gardens, Sydney. 1 



Art. II. — Some observations on the Bio-Chemical characteristics 

 of Bacilli of the Gaertner Paratyphoid- Hog Cholera Group. 

 By Burton Bradley, m.b., ch.m., m.r.c.s., l.r.c.p., d.p.h., 

 Assistant Microbiologist, Bureau of Microbiology, Honorary 

 Pathologist to St. Vincent's Hospital, Sydney. (From the 

 Laboratory of the Government Bureau of Microbiology.) ... 74 



Art. III. — On a new species of Prostanthera and its essential oil. 



By K. T. Baker, f.l.s., and H. G. Smith, f.c.s. [With Plate I.] 103 



Art. IV. — The differentiation phenomena of the Prospect Intrusion. 

 By H. Stanley Jevons, m.a., b.sc, H. I. Jensen, d.sc. 

 and C. A. Sdssmilch, p.g.s. [With Plate JJ.J Ill 



Art. V. — Notes on two Lightning Flashes. By F. H. Quaiee, 



m.a., m.d 138 



Art. VI. — Notes on a model of New England and the associated^ 

 topographical forms. By E. C. Andrews, b.a. (By per- 

 mission of the Under-Secretary of Mines.) [With Plate III.} 143 



