SCIENTIFIC VROCEET)mG8—contmued. 



13. 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 Inlieritance of the Dun Coat-Colour in Horses. By James Wilson, m.a., b.sc. 



(January, 1912.) Is. 



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



Chlorides. Part I.— Cadmium, Zinc, ThaUium, 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 



Syringa vulgaris. By Henry H. Dixon, sc.d., f.e.s., and W. E. G. Atkins, 

 M.A. (February 21, 1912.) Gd. 



17. Improvements in Equatorial Telescope Mountings. By Sm Howard Grubb, 



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



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



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

 1912.) Gd. 



19. Variations in the Osmotic Pressure of the Sap of the Leaves of Hedera helix. 



By Henry H. Dixon, sc.d., f.r.s., and W. E. G. Atkins, m.a., a.i.c. (April 

 9, 1912.) 6d. 



20. Heterangium hibernicuin, sp. nov. : A Seed-bearing Heterangium from 



County Cork. By T. Johnson, d.sc, f.l.s. (Plates XX. and XXI.) 

 (April 12, 1912.) Is. 



DUBLIN: PRINTKll AT THK UNIVEHBITY VRE88 BY I'DNSONBY ANU OIBBS. 



