INDEX 
TO THE 
PHILOSOPHICAL TRANSACTIONS 
FOR THE YEAR 1872. 
A. 
Airy (Sir G. B.). Corrections to the Computed Lengths of Waves of Light published in the Philo- 
sophical Transactions of the year 1868, 89. 
Experiments on the Directive Power of large Steel Magnets, of Bars of magnetized 
Soft Iron, and of Galvanic Coils, in their Action on external small Magnets. — With Appendix, 
containing an Investigation of the Attraction of a Galvanic Coil on a small Magnetic Mass. By 
James Stuart, M.A., 485. 
O 
Angstrom’s measures of wave-lengths of light, discussion of, 89 (see Airy). 
Atmospheric absorption of light, wave-lengths of lines due to, 107. 
Australia, fossil mammals of, viz. Nototherium, 41; Phascolomys, 173 and 241. 
B. 
Boiling-points of mixtures, 336. 
Brodie (Sir B.). An Experimental Inquiry on the Action of Electricity on Gases. — I. On the Action 
of Electricity on Oxygen, 435. 
C. 
Capillarity of mixtures, 337. 
Cayley (A.). Corrections and Additions to the Memoir on the Theory of Reciprocal Surfaces (Philo- 
sophical Transactions, vol. clix. 1869), 83. 
Cheiroptera, myology of the, 125 (see Macalister). 
Coal-measures, fossil plants of, 197, 283. 
Compressibility of mixtures, 340. 
Contact of surfaces, 259. 
D. 
Ditscheiner’s measures of wave-lengths of light, discussion of, 89 (see Airy). 
Duncan (P. M.). On the Structure and Affinities of Guynia annulata, Dune., with Remarks upon the 
Persistence of Palaeozoic Types of Madreporaria, 29 (for contents see p. 29). 
MDCCCLXXII. 3 Y 
