Goodale — Development of Botany Since 1818. 401 



(19, 63, 299, 1831; 20, 248, 1831; 23, 78, 250, 1833) of a 

 very long list of the plants of Chili ; Wolle and Huebener 

 (37, 310, 1839) gave an annotated catalogue of botanical 

 specimens collected in Pennsylvania; Tuckerman (45, 27, 

 1843) presented communications in regard to numerous 

 species which he had examined critically; Darlington 

 (41, 365, 1841) published his lecture on grasses ; Asa Gray 

 (40, 1, 1841) gave an instructive account of European 

 herbaria visited by him, and he contributed also a charm- 

 ing account (42, 1, 1842) of a botanical journey to the 

 mountains of North Carolina. The most extensive series 

 of botanical communication at this time was the Cartog- 

 raphy by Professor Dewey of Williams College, pre- 

 sented in many numbers of the Journal ; the first of these 

 in 7, pp. 264-278, 1824. There were also descriptions of 

 certain new genera, and species, and critical studies in 

 synonyms. 



Cryptogamic botany is represented in the first series 

 of volumes of the Journal by L. C. Beck's (15, 287, 1829) 

 study of ferns and mosses, by Bailey's (35, 113, 1839) 

 histology of the vascular system of ferns, by Fries' Sys- 

 tema mycologicum (12, 235, 1829), and by De Schweinitz 

 (9, 397, 1825) and Halsey, who had in hand a cryptogamic 

 manual. There are two important papers by Alexander 

 Braun, translated by Dr. George Engelmann, one on the 

 Equisetaceae of North America (46, 81, 1844) and the 

 other on the Characeae (46, 92, 1844). 



Vegetable paleontology had begun to attract attention 

 in many places in this country, and therefore the trans- 

 lated contributions by Brongniart on fossil plants were 

 given space in the Journal. Plant-physiology received 

 a good share of attention either in short notices or in 

 longer articles. Such titles appear as, the respiration of 

 plants, the circulation of sap, the excrementitious matter 

 thrown off by plants, the effects of certain gases and 

 poisons on plants, and the relations of plants to different 

 colored light. One of the most important of the notes 

 is that in "which is described the discovery by Robert 

 Brown (19, 393, 1831) of the constant movement of 

 minute particles suspended in a liquid, first detected by 

 him in the f ovilla of pollen grains, and now known as the 

 Brownian (or Brunonian) movement. The heading 

 under which this note amoears is of interest, "The motion 

 of living particles in all kinds of matter. ' ' 



