PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 84. 



No. B 575. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



A Method for Isolating and Cultivating the Mycobacterium enteritidis 

 chronicae pseudotuberculosae bovis, Johne, and Some Experiments on the 

 Preparation of a Diagnostic Vaccine for Pseudo-tuberculous Enteritis of 

 Bovines. By F. W. TWORT, M.R.C.S., L.R.C.P. Lord., and G. L. Y. 

 INGRAM, M.R.C.V.S 5»7 



On the Fossil Flora of the Forest of Dean Coalfield (Gloucestershire), and the 

 Relationships of the Coalfields of the West of England and South Wales. 

 By E. A. NEWELL ARBER, M.A., F.L.S., F.G.S., Trinity College, 

 Cambridge, University Demonstrator in Palaeobotany. (Abstract) . . 543 



Simultaneous Colour Contrast. By F. W. EDRIDGE-GREEN, M.D., F.R.C.S., 



Beit Memorial Research Fellow 546 



An Alleged Specific Instance of the Transmission of Acquired Characters. — 



Investigation and Criticism. By T. GRAHAM BROWN (Carnegie Fellow) . 555 



Note on Astrosclera willeyana Lister. By R. KIRKPATRICK . . . 579 



Obituary Notices of Fellows Deceased : — Sydney Ringer (with portrait) ; 

 Sir Rubert Boyce ; Sir Francis Galton ; John Hughlings Jackson ; 

 John Beddoe i — xxvii 



Index xxix 



Title, Contents, etc. 



printed for THE ROYAL SOCIETY and sold by 



HARRISON & SONS, 45, ST. MARTIN'S LANE, LONDON, W.C. 

 Price Three Shillings. 



No. B 575- 



March 12,1912. 



