VOL. I V.J Dates of Botanical Works. 371 



Part 7, pp. 289-336 in 1840 {Hetei-ocentiott, etc., and several cited by 

 Endlicher in that year"). 



Part 8, pp. 337-384, in 1840 {Ataiia, etc.) 



Part 9, pp. 385-432, in 1841? [Grayia, etc., cited by Endlicher in 1842). 



Part 10, pp. 433-(4S6), in 1841 {Sinclairia). 



The latter half of the work is especially open to doubt, iox Silliman'' s Jour- 

 nal, xxxix. (1840), pp. 172-3, states that parts 9, 11, and 12 came out in 1839 

 or 1840, the twelfth being the conclusion; and, if correct, this shows that 

 the latter parts were not of the same dimensions as the first part. It is in 

 this direction that I seek for further information from any Botanist or 

 Librarian who can enlighten me." — B. Daydon Jackson, in Journal of 

 Botany, Oct., 1S93. 



The following extracts from Silliman's Journal show the 

 approximate dates of the concluding parts of Botany Beechey 

 and the Flora Boreali-Americana. It must be remembered, 

 however, that communication at that time was not so frequent 

 and so rapid between Europe and America as at present, and 

 that we have no means of knowing how long the papers were in 

 the hands of the editors. 



Hooker and Arnott , the Botany of Capt. Beechey'' s I'oya'^e, etc.. Part ix., 1840. 

 (London). — This work has extended to four hundred and thirty-two quarto 

 pages, and another fasciculus will perhaps complete the work, but of this 

 we are uncertain. The number of plates already cited is ninety-nine, of 

 which eighty-nine are published. * * * — Sillinian^s Journal, xxxix. 

 No. I, 172-3, April-Juue, 1840. 



Hooker and Arnott's Botany of Capt. Beechey^ s J'oyage; part 10, 184 1 (tab. 

 90-99). — The tenth and last fasciculus of this work concludes the account of 

 a collection on the Pacific coast of Mexico, and is terminated by a complete 

 index. The ten plates it comprises are nearly all devoted to Californian 

 plants described in prior fasciculi; among which Pterostegia, a curious Poly- 

 gonaceous genus, Anemopsis CaUfornica of Nuttall, and Lophochhcna of Nees, 

 a singular grass, are the most remarkable. — Silliman^s Journal, xli. 374, 

 July-Sept., 1 84 1. 



Hooker, Flora Boreali-Ainericani, or the Botany of the N^orihern parts of 

 British America, etc., part xi., iSjg. {London). — The eleventh part of this 

 work has just reached us; and as the twelfth and concluding portion may 

 soon be expected, we hope to give in the following number of this Journal 

 a more particular notice of Sir William Hooker's most important and 

 extensive labors in North American botany. For the present we may 

 merely state that the eleventh fasciculus comprises the Orchideous, and the 

 Irideous and Cyperaceous plants, and a portion of the grasses. * * * 

 — Silliman's Journal, xxxix, No. I, 172, April-June, 1840. 



Hooker's Flora Boreali-A inericana, or the Botany of the Northern parts of 

 British America, 2 vols. 4to. 182-940. — The twelfth part, which contains the 



