

SCIENTin^" ^ii.DmGS— continued. 



13. Forbesia cancellata, geu. 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.sc. 



(January, 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 



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

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



17. Improvements in Equatorial Telescope Mountings. By Sie Howaed Gkubb, 



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



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



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

 1912.) 6d. 



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



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

 9, 1912.) Gd. 



20. Heterangium Idhernicum, 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. 



21. On the Vacuum Tube Spectra of some Metals and Metallic Chlorides. Part 



II. — Lead, Iron, Manganese, Nickel, Cobalt, Chromium, Barium, Calcium, 

 Strontium, Magnesium, Potassium, Sodium, and Lithium. By James H. 

 PoLLOK, D.Sc. (Plates XXIL and XXIII.) (May 7, 1912.) Is. 



22. The Ultimate Lines of the Vacuum-tube Spectra of Manganese, Lead, Copper, 



and Lithium. By Genevieve V. Moeeow, A.E.C.So.I. (Plate XXIV.) 

 (May 11, 1912.) Is. 



23. Award of the Boyle Medal to Sie Howaed Geubb, f.e.s., April 16, 1912. 



(May 18, 1912.) U. 



24. Notes on Dischidia rafflesiana, Wall., and DiscJiidia nummularia, Be. By 



A. F. G. Kbee, m.d. (Plates XXV.-XXXI.) (September 30, 1912.) 2s. 

 26. Eecherches Exp6rimentales sur la Densite des Liquides en dessous de 0°. Par 

 Jean Timmeemans. (October 18, 1912.) 3s. 



DUBUN : PKINTED AT THE UNlVEKStXY PKESS BY I'ONSONBV AND GIBES. 



