^^""-l CHRONOLOGICAL NOTES. 415 



have great historical value. As much may also be said for still another 

 book of Petzholdt, published the same year, " De Balano et Oalamo- 

 syringe (Additamente ad Palseologiam). 



Although the first number of Dnger's " Ghloris Protogaea" appeared 

 in 1841, still the work was not published until six years later, and con- 

 tains preliminary matter of later origin and of such moment as to ren- 

 der it more proper to speak of the work as a whole in the chronological 

 order of its final publication. 



In 1842 numerous papers relating to fossil plants appeared in the cur- 

 rent periodicals by Biuuey, Goppert, Gutbier, Kutorga, Unger, and 

 others, all contributing to swell the literature of the science and supply 

 the data for future generalization. Mr. WilUamson's paper before the 

 British Association of that year on the origin of coal (supra, p. 376) has 

 already been referred to as a landmark to indicate the point of time at 

 which he joined the growing band of workers in this field. Miquel's 

 monograph of the Oycadaceae,"^ although dealing chiefly in the living 

 forms, takes account also of the fossil cycads, and forms a contribution 

 to the subject that was much needed in its day. In Vanuxem's " Geol- 

 ogy of ISTew York," which forms Part III of the " l^atural History of 

 New York" (Albany, 1842), occur numerous figures of fossil plants, with 

 some general remarks thereon. 



Some dozen or more memoirs on fossil plants appeared in 1843, the 

 most important of which were by Eoemer "' and Parlatore."" The first 

 edition of Morris's " Catalogue of British Fossils " ^'' (including fossil 

 plants) also appeared in that year. 



The number of contributions to the science of fossil plants in 1844 

 was considerably larger than in the previous year. It includes Schim- 

 per and Mougeot's " Monographic des plantes fossiles du grte bigarr6 

 de la Chaine des Vosges," a work of considerable importance. In it are 

 described and figured species of ^thophyllum, of surprising form and 

 perfection, also Yuecites and other of the most ancient monocotyledo- 

 nous types; Albertias, Voltzias, Schizoneuras, and Ferns. 



Numerous short papers by Goppert relate to the lignite beds, and 

 show that he was working up towards the subject of amber inclusions, 

 which were soon to engross his attention ; and one of these relates to 

 the existence of amber in his own country,^"" and gives an historical ac- 



'98 R A. G. Miquel. Monographia Cycadearum. Trajecti ad Rheum. Fol. cum 8 

 tab. 

 '3' Friedrich Adolph Roemer. Die Versteinernng des Harzgebirges. Hanover, 



1843, 4to. 



198 Filippo Parlatore. Intorno ai vegetal! fossili di monte Bamboli e di monte Massi. 

 Atti d. Georgofili d. Firenze, Vol. XXf, pp. 1-83. Firenze, 1843. 



'^ John Morris. A Catalogue of British Fossils, comprising genera and species hith- 

 erto described vrith references to their geological distribution and to the localities in 

 which they have been found. London, 1843. Second edition, considerably enlarged. 

 London, 1854. 



2™ Ueber das Vorkommen des Bernsteins in Sohlesien. Uebersicht d. schles, Gesell., 



1844, S. 228. 



