( 1 ; 

 Vol. XXXIV. 



No. 1. Report on tlie Sponges collected off the Coast of Ireland by the Dredging 

 Expeditions of the Royal Irisli Academy and' the Roj-al Dublin Society. 

 Jane Stephens, k..a., ji.sc. 6d. 



„ 2- On the Attachment Organs of the Common Corticolous Kamalinae. 



Lilian Pokiek. m.sc. 6d. 



„ 3. The Exploration of Castlepook Cave, County Cork. 



R. F. SCHAKFF, H.SC, PH.D., H. J. SEYMOLTK, H.A., 1! >C., F.G.S., 



and E. T. Newion, f.k.s. is. 6d. 



,, 4. Tlie Presence of Lateral Spiracles in the Larva of Hypoderma. 



Geokge H. Cakpkniek, m.sc, and F. J. S. Pbi.r.Aki). 6d. 



,, 5. Syntheses of some New Substantive Dyes derived from Benzidine- ^ 

 Sulphone. 'I 



Hugh Rvan. i>..sc., Joseph Ai.gak, D.scandPHiLipO'CosNKi.i,, m.sc. ■ 6d. 

 ,, 6. On the Nitro Derivatives of Diphenylamine. . I 



High Rvan, n.sc, and Ihomas Gi.ovek, m.sc. J 



.. 7. On Certain Actiniaria collected off Ireland by the Irish Fisheries Department, 

 during the years 1890-1913 



T. A. SlEPHENsON. IS. 6d. 



„ 8. The Nitro Derivatives of Phenyl-2-Xaphthylamine. . 



High Rvan. d.sc, and James J. Dklmm, m.sc. | 



,, 9. On 0-, fl-, and 7-Trinitrotoluenes. I ,^ 



Hugh Rvan, d.sc. and W. M. O'Riordan, m.sc. 



10 



6d 



No. 



1. 



t* 



2. 



tt 



3. 



»» 



4. 



HUGH KVAN, D.St, ana \\ . ai. u kiokuan, m.sc. I 



On the Action of Nitric Acid and Nitrous Acid on Diphenylamine. I 



High Rvan, d.sc, and Phvi.lis Rvan, m.sc ^ 



11. On the Attachment Organs of some Common Parmeliae. 

 Lilian Pok i ek, m.sc 6d. 



12. On the Action of Nitric Acid and Nitrous Acid on Diphenylamine II. 

 High Rvan, D.Sc, and Phvllis Rvan, M.Sc ' 



13. On the Action of Bromine on some Derivatives of Diphenvlaniine. k 

 Hlgh Rvan, D.Sc, and William O'Riordan. M.Sc 



Vol. XXX\' (Current Volume). 



On Species of S«dum collected in China by L. H. Bailey in 1917. 



R. Ll.OVD pKAKGtK. 6d. 



The History of the London Plane, Platanus acerifolia, with Notes 



on the Genus Platanus. 

 AiGisiiNE Henry, m.a , f.l.s., and Margaret G. Flood, k.a. is. 

 On the Occurrence of Tropical Drift Seeds on the Irish Atlantic Coasts. 



Naihanikl Colgan. is. 



The History of the Dunkeld Hybrid I^rch, Larix eitrolepis, with 



Notes on other Hybrid Conifers 

 AiGisTiNE Hfsrv, .M.A., F.L.S. , and Margaret G. Flood, b.a. 6d. 

 ,. 5 The Dou:''-- ■•"■'- ■ A Botanical and Silvicultural Description of the 



Varif of Pseudotsuga. is. 



AUGfSi:. ..;<V, U.A.. F.L.S., and MARGARET G. FLOOD, K A. 



6. Minor Periodicity in Glacial Retreat. is. 



\V. B. Wright. 



7. The Acarina of the Seashore. is. 



J. N. Halbert. 

 „ 8- An Experimental Study of the Foraminiferal Species V'emeuilina 

 Polystropha (Reuss). and some others, being a contribution to a 

 discussion " On the Origin, Evolution, and Transmission of 

 Biological Characters." 

 E. Heron-Allen, f.r.s., and A. Earlaxd, f.r.m.s. 

 ,. 9. The Genus Corallimorphus. is. 



T. A- STEPHEN.SON, M.SC. 



,, 10. Limnesthena: A New Conchostracan Genus from the Kilkenny Coal- 

 Measures. is. 



Mabel C. Wright, a.r.csc.i. 

 .. 11. The Frcsh-wqter Sponges of Ireland. 



JANE Stephens, b.a., b.sc. 2s. 6d. 



[List of Papers in the other Sections— A. Mathematical, Astronomical, and 

 Physical Science ; and C. Archaeology, Linguistic, and Literattire ; also of 

 the "Clare Island Surrey"— may be obtained on application.] 



Sold by 



Hodges, Figgis, & Co., 20, Nassau Street, Dublin; and 



Williams & Norgate, 14, Henrietta Street, Covent Garden, London, W.C. 



