HTSTORY OF RESEARCH. clxiii 



He takes it for granted throughout that the reader wishes to know in brief the 

 facts already discovered, and by whom; and the various inferences already drawn, 

 and why. That the reader, like himself, may be in a position to arrive at his own 

 unbiased conclusions, he supplies him with a wealth of illustration and detail that 

 are certain to render the monograph of especial value, not only to the field- 

 geologist, but also to the beginner in Graptolithology. 



After giving a carefully written but brief review and 

 1908 ... 



' discussion of the history of the successive past improvements 



Moberg, J. C, J _ . 



" Nomenklaturen for m the nomenclature of the Swedish Lower Palaeozoic Rocks, 

 vara Paleozoiska bild- the author expresses his agreement with the plan advocated 

 ningar," ' G-eol. Foren. by De Lapparent in 1900, namely, the retention of Murchi- 



Forhaudl., vol. so, SO n's term Silurian for the whole of the Palaeozoic Formations 

 regarded collectively, and the employment of the names 

 Cambrian (Sedgwick), Ordovician (Lap worth, 1879), and Gothlandien (De Lap- 

 parent, 1900) for its three component divisions and their respective faunas. This 

 paper, which had already been published by the author in the ' Geological Magazine ' 

 for 1907 (December 5, vol. vi, pp. 273 — 279), is of especial importance from the 

 historical point of view, as the nomenclature advocated in its pages became sub- 

 sequently adopted in the Geological Guides and Memoirs issued in connection with 

 the International Geological Congress held in Stockholm in 1910, and in the 

 majority of those Swedish Graptolite memoirs and papers which have been 

 published since that date. 



An identification and discussion of twenty-one forms of 

 1908. . J 



(Ms Shal-es jear) Graptolites collected by Mr. Isaacson from Slaty Creek, New 



Wood, E. M. K., Zealand, for the British Museum (Nat. Hist.). It is pointed 



" On some New Zealand out that all the species distinguished in the collection are 



Grraptohtes,' ' Geol. either identical with, or closely allied to, previously named 



ag. |_ J vo . v, British and North American forms whose association and 



pp. 145-148. 



geological range are already fairly well established in the 



Northern Hemisphere. Two Graptolitic sub-zones, distinguishable by lithological 



and palaeontological characters, are noted by the author as represented in the 



collection. A table is given, showing the distribution of these New Zealand 



species in America and Great Britain, and the conclusion is drawn that, as the 



association of species in this collection is practically the same as their association 



in the Northern Hemisphere, it may be anticipated that further work will result in 



proving that the zonal succession of Graptolites, well established in the Northern 



Hemisphere, prevails in New Zealand also. 



1908. 



Hall, T. 8., 



" Reports on Grapto- Lists of Graptolites collected by the officers of the 



lites," ' Records Geol. Geological Survey in several Victorian localities. 

 Surv. Victoria,' vol. ii, 

 pp. 221-227. 



