CONTENTS OF VOLUME XXVII. 



I. — Victorian Holotlmroiclea, with desciiptioiis of Now Species. 



Hy E. C. Joshua. (Plat« I.) ... ... ... ... 1 



II.— N.jte.s on .Xustralian Cicadidae. By How.vbd .\8hton. 



(Plate ir.) . . . ... ... 12 



in.— Three New .\friean Cicadas. K_v Ho\v.\rd Ashton. (Plate 



III.)... ... .. .. ... ... ... l.-> 



IV. — The Anatomy of Caryodes dufre.snyi, Leach. By Olive H. 



Davies, M.Sc. (Plate IV.) ... ... .. . 1«> 



V. — ()n a New SjHJcies .»f Ceratodus from the Cretaceous of New 



South Wales. Hv FreoerI'K Chapman, A.L.S., .^c. 



(Plate V.) . .. .. . . j:, 



VI. — De.scriptiiiii of New and Kare Fossils ohtaineil l>y l»eep Boriii;,'- 



in the Mallee. (Part III.— Ostracoda to Fishes.) By 



Fkedekick Chai'MAX, A.L.S., Ac. (Plates VI. to X.) .. I's 

 VII.— Further Notes on Australian Hy<ln.ids. -Ill By W. .M 



Bale, F.K M.S. ^Plates XI.. XII. and XIII.) .. 72 



VIII. — Un some New Species of Victorian Marine Molhisca By .1. II. 



(tatlifk and C. J. (iabkiel. (Plates XI V, XV. and XVI » ".M 

 IX.— Additions to the Catalogue of the Marine Shells of Victoria. 



By J. H. (tatmke and <" .1. (Jabkikl ... .. i>'.» 



X. -Victorian (jraptolites. Part IV.; Some N'.w or Little-known 

 Sp.cies. By T. S. Hai.i,. M.A.. D.Sc. ( Plates XVII. and 

 XVIII., and Te.xt Fif,Mire8) ... ... ... ... *1m|. 



XI. — The Petrolo^'y and Minin-^' Geoloj^y of tho Country ni;ir 



Queenstown. By Nukman H. Jinnkk, B.Sc. (Plate Xl.\) I l'.» 



.\ 1 1.— Studies in the Physical Chemistry of Kssential < )ils. (Part 

 I. — The Physical Pro|K'rties of mixtures of two Terpene 

 substances in relation to thos" of the constituents. By 

 Ik. Bakky Drew, M.Sc, and E. Ivan Rosknblum, M.S,-. 

 Part II. — The Physical Constants of some Terijenes and 

 oxyiLjenated derivatives thereof, and their variation witii 

 temperature. By Iva.s Kosenblum, M.Sc. ... . 1 1!» 



XIII. — Sin<;ular Parameter Values in tlie Boiuidary ProMems of the 



P.itential Theory. By < '. E. Wka rHKRBUUN. .M.A., B.S.-. Kit 

 XIV. On the (Jeojrraphical Distril.ution of tlie Sea-(Jrasses. By <'. 



H. OSTKNKKLI). ... ... ... ... 17'.» 



XV— Mitt. -r Pit and Sensitivity of Appl.'sto Poi.-uns. Bv II. 'i 



Bkiii.ahl. B.S.v, and A. « '. II. KoTHeka. IVI.A., U.S.-. ... litl 



XVI. — Notes on Australian an<l Tasmanian Si-ydmaeuidae, with 



Descriptions of N»'w Species. ByAKruiK M. Lea ID.s 



