SCIENT' ; TIDINGS— w«/mM«/. 



14. The Action of the „ icids of N'''-og on Diphenylurethane.- 



By Hugh Byan, Anne Dokne-j ^., "-.sc, University College, 



Dublin. (February, .uo.) 



15. The Action of the Oxides and the Oxyacids of Nitrogen on Ethyl-o-Tolyl- 



' urethane. By Hugh Ryan, d.sc, and Nicholas Cullinane, ph.d., 

 University College, Dublin. (February, 1923.) 



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



urethane. By Hugh Ryan, 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.so.,^ 

 University College, Dublin. (February, 1923.) 



18. The Action of the Oxides and the Oxyacids of Nitrogen on the Plienylureas.^ 



By Hugh Ryan, d.sc, and Peter K. O'Toole, m.sc, University College, 

 Dublin. (February, 1923.) 



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



urea. By Hugh Ryan, d.sc, and Michael J. Sweeney, bi.sc. University 

 College, Dublin. (February, 1923.) ' ' 



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



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



Carriers of the Leaf-roll Disease. By Paul A. Muephy, scd., 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, P/umix, and Vicia. By Henry H. Dixon, scd., 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 Rate of Solution of Oxygen by Water. By H. C. BECicERr 



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

 Dublin; and E. F. Pearson, a.r.csci.. Research 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., scd., f.i.c (June, 1923.) 



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



of Milk Fat. By E. J. Sheehy, f.r.csci., b.sc (hons.), m.r.i.a., Biochemical 

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



[Nos. 20 to 24, price 7s. 6rf.] 



OUllLIN : PRINTBI) AT THE UNlVlillglTV rUEHS BV 1-ONSOWHV ANll OIXHS. 



