SCIENTIFIC PROCEEDINGS— cowifm^erf. 



18. Forbesia cancellata, gen. et sp. nov. (Sphenopteris, sp., Baily). By 

 T. Johnson, d.sc, f.l.s. (Plates XIII. and XIV.) (January, 1912.) Is. 



14. The Inheritance of the Dun Coat-Colour in Horses. By James Wilson, m.a., b.so. 



(Januaa-y, 1912.) Is. 



15. On the Vacuum Tube Spectra of the Vapours of some Metals and Metallic 



Chlorides. Part I. — Cadmium, Zinc, Thallium, Mercury, Tin, Bismuth, 

 Copper, Arsenic, Antimony, and Aluminium. By James H. Pollok, d.sc. 

 (Plates XV. and XVI.) (February 21, 1912.) Is. 



16. Changes in the Osmotic Pressure of the Sap of the Developing Leaves of 



Syriiiga vulgaris. By Henky H. Dixon, sc.d., f.b.s., and W.R. G. Atkins, 

 M.A. (February 21, 1912.) 6d. 



17. Improvements in Equatorial Telescope Mountings. By Sni Howard Gkubb, 



F.E.S. (Plates XVII.-XIX.) (March 26, 1912.) Is. 



18. Variations in the Osmotic Pressure of the Sap of Ilex aquifolium. By 



Henry H. Dixon, sc.d., f.e.s., and W. R. G. Atkins, m.a., a. i.e. (April 9, 

 1912.) 6d. 



HVhl.fS: PKlNTKIi A-r THK tlNIVKKSITY PRIISS BY I'UNSONKV ASH OIHBS. 



