PHILOSOPHICAL TRANSACTIONS. 



Contents oe Paet III, 1881. 



[XII. Kesearches in Spectrum Analysis in connexion with the Spectrum of the 

 Sun. — No. V. By J. Norman Lockyee, F.E.S. 



XIII. Eesearches on the Minute Structure of the Thyroid Grland. By E. Ceess- 

 weel Babeb, M.B., Lond. 



XI Y. On Toroidal Functions. By W. M. Hices, M.A., Fellow of St. John's 

 College, Cambridge. 



XV. Polacanthus Foxii, a large undescribed Dinosaur from the Wealden Forma- 

 tion in the Isle of Wight. By J. W. Hueee, F.E.S. 



XYI. On the Histology and Physiology of Pepsin-forming (Hands. By J. N. 

 Lanolet, M.A., Fellow of Trinity College, Cambridge. 



XVII. Memoir on Abel's Theorem. By E. C. Eowe, M.A., Fellow of Trinity 

 College, Cambridge. 



Addition to Mr. Eowe's Memoir. By Professor Catlet, F.E.S. 



XVIII. On Eiccati's Equation and its Transformations, and on some Definite 

 Integrals which satisfy them. By J. W. L. G-laishee, M.A., F.E.S. , 

 Fellow of Trinity College, Cambridge. 



XIX. The Croonian Lecture. — Observations on the Locomotor System of 

 Echinodermata. By G-eoegke J. Eomanes, M.A., F.E.S., and Professor 



J. COSSAE EWAET, M.D. 



XX. On the Influence of the Molecular (Grouping in Organic Bodies on their 

 Absorption in the Infra-red Eegion of the Spectrum. By Captain 

 Abney, E.E., F.E.S., and Lieut. -Colonel Festing, E.E. 



Index to Volume. 



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