Botany. 235 



for the most part into serpentine ; the garnet into minerals of the 

 chlorite group ; while the hornblende has generally withstood 

 alteration. The paper of Mr. Lemberg contains a considerable 

 imposition of the original min- 

 decomposition. — [ZeUschrift d. 



aber of analyses showing the composition of the original 

 " ' ? products of ^ ' ' "^ ■■ - 



Beutsch. geol. Geselhchaft, 



15. Selwynite^ NoumeUe., Garnierite. — Mr. G. H, F. Ulrich, 

 in a letter dated Melbourne, Nov. 3d, 1 875, states that the new 

 species Selwynite, described by him, is not a homogeneous mineral. 

 A microscopic examination shows it to consist of a felsite-like 

 base, through which hydrous chromic oxide is disseminated, a 



or hydrous silicate of nickel is densely distributed in small veins 

 and roundish patches. Some of the ore gave an assay up to 

 twenty per cent of nickel, and others as low as two per cent. 



16. Manual of Geology of J. J). DartM.— The following changes and corrections 

 (besides some others merely typographical) have been made in the stereotype 

 plates of the work since its first publication in 1874, and are needed by the copies 



Page XV, 17 1. from top, P. C. Carpenter for J. O. Cooper. Page 3, 8 1. fr. top, 

 1-1,200,000 for 1-200,000. P. 82, fig. 61f has been inverted ; and the same on p. 

 546. p. 147, 4 1. fr. foot, C. for F. P. 1 66, under fig., 4a Trenton for " 4 Trenton." 



III. Botany. 



bv Geo. ExGKLMA>-y, M.D.-This is a 

 the Transactions of the AcadcTuy of 



modest title of a paper 



Science of St. Louis, Missouri, vol. iii, December, . 

 rately issued it forms a pamphlet of 35 pages, 8vo. I 

 take not it'begins that volume; so that the pages of the 



