( 4 ) 



Vol. XXXIV. 



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

 Expeditions of the Koyal Irish Academy and the Royal IHiblin Society. 

 ]ANK SriU'Hl'NS, B.A., 1!..SC. 6d. 



,, 2. On the Attachment Organs of the Common Corticolous Ramalinae. 



I. II. IAN POKlliK, M.sc. 6d. 



„ 3. The IC.xploration of Castlepook Cave, County Cork. 



R. F. SCHAHFK, H.SC., PH.D., H. |. SEVMOUK, H.A., use, F.G.S., 



and K. T. Nkwion, f.k.s. is. 6d. 



„ 4. The Presence of Lateral Spiracles in the l.arva of Hypoderma. 



Geokge H. Cakpkniick, m..^c., and F. J. S. Poi.i.akd. 6d. 



,, 5. Syntheses of some New Substantive Dyes derived from benzidine- " 

 Sulplione. 

 Hi'GH RvAN. u.^c, Jo.'ii:i'H Ai.GAK, i>..sc., and Ph ii.tH 0'CoNNi:i.i , M.t;c. 6d. 

 „ 6. On the Nino Derivatives of Diphenylamine. 



Ht'GH Ryan, d.sc, and Thomas Gi.o\i;u, m.sc. 

 ,, 7. On Ceitain Actiniaria collected otT Ireland by the Irish Fisheries Department, 

 during the years 1890-191.^ 



I'. A. SrKi'HENsoN. IS. 6d. 



,, 8- The Nitro Derivatives of Phenyl-2-Naphthylaniine. ., 



High Ryan, n.st., and Jamks ). Dri^mm, .m.sc. 

 ,, 9. On a-. B-, and ■>-l rinitrotoluenes. 



High Rvan, k.sc. and W. M. O'Riokdan, m.sc. 

 ,, 10. On the Action of Nitric Acid and Nitrous Acid on Diphenylamine. 



Hugh Ryan, d.sc, and Phyllis Ryan, m.sc. 

 ,, 11- On the Attachment Organs of some Common Parmeliae. 



Lilian Pokikk, m.sc. 6d. 



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



Hi gh Ryan. D.Sc, and Phyllis Rvan, M.Sc I ^^ 



,, 13. On the Action of Bromine on some Derivatives of Diphenylamine. i 

 High F^yan, D.Sc, and William O'Riokdan, ^LSc. ; 



Vol. XXX \' (Curkent Volumk). 



No. 1. On Specie!! of Sediiin collected in China by I.. H. K.iiley in 1917. 



U. LioYO Pkakgkk. 6d. 



,, 2. The History of the London l'\^nc, P/a/tz/ius aceri/olia, with Notes 

 on the Genus Platanus. 

 AuGiMiXK Hknry, m.a , F.L.S., and Makgakki C. Flood, u.a. is. 

 ,, 3. On the Occurrence of Iropical Drift Seeds on the Irish Atlantic Coasts. 



NaIHANIEL Col.GAN. IS. 



,, 4. The lliblor)- of the Dunkeld Hybrid 1-arch. Larix eiirulepis, with 

 Notes on other Hybrid Conifers 

 Akumim: Hkkky, m.a., f.l.s., and Makgarki G. Flood, b.a. 6d. 

 ,, 5. The D"i^i;i.is Firs : A Bulanical and Silvicultural Description of the 



\'.ir:. U-. Species of Pseudotsuga. is. 



ALGL.--1INE HKNK^. M.A.. K.L.S., and Makgakkl G. Fi.ood, h a. 

 ,, 6. Minor Periodicity in Glacial Retreat. is. 



\V. B. Wkight. 

 7. The Acariiia of the Seashore. is. 



J. N. Halmeki. 

 ,, 8. An Experimental Study of the Foraminiferal Species I'erneuilina 

 Pohstropha (Reuss), and some others, being a contribution to a 

 discussion " On the Origin, Evolution, and Transmission of 

 Biological Characters." is. 6d. 



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

 ,. 9. The Genus Corallimorplius. is. 



1. A. Stephenson, m.sc 

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

 Measures. is. 



Mabel C. Wright, a.r.c.sc.i. 

 ,, 11. The Fresh-water Sponges of Ireland. 



JAXE Stephens, b.a., b.sc. zs. 6d. 



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

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

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



Sold by 



HoD>>E>, Figgis, & Co., 20, Nassau Street, Dublin ; ana 



Williams d Noroatk, 14, Henrieiia Street, C<>ve'nt Garden. London, W.C. 



