258 SUMMARY OF CURRENT RESEARCHES. 



Primrose, J. S. G.— Foundry Metallography. 



[The structures of several varieties of cast iron are desr ribed.] 



Foundry Trade Journal, xiv. (1912) pp. 44-6 (10 figs.). 



S IE VERTS, A., & E. Berg NEE. — Absorption of Hydrogen by Tantalum and 

 Tungsten. Ber. Deutsch. Chem. Ges., xliv. (1911) pp. 2394-2402. 



Steombyer, C. E.— Reliability of Mil d Steel. 



[The cracking of strained mild steel when heated in contact with caustic- 

 soda solution, and the effect of nitrogen on steel are discussed.] 



Iron and Coal Trades Review, Ixxxiii. (1911) pp. 884-5. 



Turner, L. B. — The Strength of Steels in Compound Stress, and Endurance 

 under repetition of Stress. 



Engineering, xcii. (1911) pp. 115-7, 183-5, 246-50, 305-7 (57 figs.). 



Turner, T.— Solidification of an Iron Casting in the Mould. 



Iron and Coal Trades Review, Ixxxiii. (1911) p. 975. 



Wedekind, E.. T. Veit, & K. Fetzer — Further Ferromagnetic Compounds 

 of Manganese. Ber, Deutsch. Chem. Ges., xliv. (1911) pp. 2663-70. 



ZUKOWSKY, G. J. — Lithium Amalgams. 



[Thermal analysis of the lithium-mercury system indicates the existence of 

 five compounds, LijHg, LiHg, LiHg„, LiHg^, and one the formula of 

 which has not been established.] 



Zeitschr. Anorg. Chem., Ixxi. (1911) pp. 408-18 (3 figs.). 



