SCIENTIFIC PROCEEDINGS— cow^mwe^. 



16. The Action of the Oxides and the Oxyacids of Nitrogen on Ethyl-Phenyl- 



urethane. By Hugh Eyan, d.sc, and Anna Connolly, m.sc, University 

 College, Dublin. (February, 1923.) 



17. The Action of the Oxides and the Oxyacids of Nitrogen on Phenyl-Benzyl- 



urethane. By Hugh Ryan, d.sc, and James L. O'Donovan, , m.sc, 

 University College, Dublin. (February, 1923.) 



18. The Action of the Oxides and the Oxyacids of Nitrogen on the Phenylureas. 



By Hugh Eyan, d.sc, and Peteb K. O'Toole, m.sc, University College, 

 Dublin, (February, 1923.) 



19. The Action of the Oxides and the Oxyacids of Nitrogen on Phenyl-Methyl- 



urea. • By Hugh Eyan, d.sc, and Michael J. Sweeney, m.sc, University 

 . College, Dublin. (February, 1923.) 



[Nos. 14 to 19, price 4s.] 



20. On the Cause of Eolling in . Potato Foliage ; and on some further Insect 



Carriers of the Leaf-roll Disease. By Paul A. Murphy, sc.d., a.r.csci., 

 Seeds and Plant Disease Division, Department of Agriculture and Technical 

 Instruction for Ireland. (Plate VI.) (May, 1923.) 



21. On the Channels of Transport from the Storage Organs of the Seedlings of 



Lodoicea, PUcenix, and Vida. By Henry H. Dixon, sc.d., f.r.s., Professor 

 of Botany in the University of Dublin ; and Nigel G. Ball, m.a.. Assistant 

 to the Professor of Botany in the University of Dublin. (Plates VII-XI.) 

 (June, 1923.) 



22. Irregularities in the Eate of Solution of Oxygen by Water. By H. G. Becker, 



A.R.CSCI., A. I.e., Demonstrator in Chemistry in the College of Science, 

 Dublin; and E. F. Pearson, a.r.csci., Eesearch Student. (June, 1923.) 



23. The Hydrogen Ion Concentration of the Soil in relation to the Flower Colour 



of Hydrangea Hortensis W., and the Availability of Iron. By W. R. G. 

 Atkins, o.b.e., sc.d., f.i.c. (June, 1923.) 



24. The Comparative Values of Protein, Fat, and Carbohydrate for the Production 



of Milk Fat. By B. J. Sheeiiy, p.r.csci., b.sc (hons.), m.r.i.a., Biochemical 

 Laboratory, D.A.T.I. (June, 1923.) 



■ [Nos. 20 to 24, price 7s. 6rf.] 



25. The Utilisation of Monomethylaniline in the Production of Tetryl. By 



Thomas Joseph Nolan, d.sc, f.i.c, and Henry W. Clapham, Nobel Eesearch 

 Laboratories, Ardeer. (Communicated by Prof. H. Eyan.) (July, 1923.) 



26. Evidence of Displacement of Carboniferous Strata, Co. Sligo. . By Arthur 



E. Clark, b.a., Trinity College, Dublin. (Communicated by Mr. L. B. 

 Smyth.) (July, 1923.) 



27. On a Problematic Structure in the Oldhamia Rocks of Bray Head, County 



Wicklow. By Louis B. Smyth, M.A., scB. (Plate XII.) (July, 1923.) 



28. The Hydrogen Ion Concentration of the Soil and of Natural Waters in 



relation to the Distribution of Snails. By W. R. G. Atkins, o.b.e., sc.d., 

 F.I.C, and M. V. Lebour, d.sc. (July, 1923.) ; 



29. Improved Methods of Evaporation in the Laboratory. By H. G. Becker, 



a.r.csci., a. I.e., Demonstrator in Chemistry, College of Science, Dublin. 

 (August, 1923.) 



30. A Eapid Gasometric Method of Estimating Dissolved Oxygen and Nitrogen 



in Water. By H. G. Becker, a.r.csci., a.i.c, and W. E. Abbott, 

 A.R.CSCI., A.I.C, B.sc (August, 1923.) 



31. Ligneous Zonation and Die-Back in the Lime [Citrus inedica, var. Acida) in 



the West Indies. By T. G. Mason, m.a., sc.d.. Botanist, West Indian 

 Agricultural College. (Plates XIII-XVL) (August, 1923.) 

 [Nos. 25 to 31, price 6."!. 6rf.] 



OTJllLIN : PUINTEI) AT THE UNIVEUSITV PlIEHS BY PONSONHV AND fllBES. 



