192 Rocky Mountains and Oregon. 
Dr. Mertens, of Bremen, left by him in very good order, contain- 
ing about twenty-five thousand species, and especially rich in 
European plants; that of Schrader, of Gottingen, bulky, but of 
less value; that of Schumacher, of Copenhagen, containing, like 
other Danish herbaria, a great many of Rohr’s Cayenne plants, 
Thonning’s African ones, &c.; very rich sets of 'Turczaninow’s, 
Sowitz’s, and Schrenk’s plants, and those of other Russian col- 
lectors, besides miscellaneous collections. The library is also 
very good. What both herbaria are chiefly deficient in, appear to 
be Bast Indian, South American, (except Brazil and Guiana, ) and 
Antarctic plants. Dr. Fischer himself has been at work at Asira- 
j, and has prepared for the press a detailed monograph of the 
section of the T'ragacanthee ; and with Dr. Meyer, he is now 
publishing the first part of a folio work, under the title of “ Jar- 
in de Saint Pétersbourg,” to contain colored drawings and de- 
scriptions of interesting plants which have flowered here. ‘This 
has a short account and drawing of the new Palm house, 
in the state it had attained last season, and figures and descri 
tions of ten species, amongst which is a very handsome Brazilian 
Almeidea. Dr. Fischer possesses a private herbarium, arranged 
in large double sheets like that of the Academy of Sciences, and 
apparently containing a very considerable miscellaneous collec- 
tion in good order. I met here Prof. Trautvetter, of Kieff, who 
is at work on the plants brought by Middendorf from Northern 
and Arctic Russia; and as there are but few aids at Kieff, he 
came here to consult books and herbaria. The Flora gathered 
by Middendorf, is, in many respects, that of Melville Island, but 
more numerous in species.—({pp. 531-533.) . 
Arr. XXII.—Observations on the Rocky Motniains and Ore- 
gon; from the Reports of the Exploring Expeditions of Capt. 
J.C. Frémont.* 
Few travellers have encountered greater hardships, and none 
have exhibited more indomitable courage, or untiring zeal, than 
Captain F'rémont in his explorations about the Rocky Mountains, 
and among the heights, lakes and deserts of Oregon and Califor- 
nia. The first of the two Expeditions of which we have an ac- 
count in the volume above referred to, terminated at the summit 
of the Rocky Mountains, after an examination of the south pass. 
and to Oregon and North California in the years 1243, '44, Captain J. 
C. Fiemont, of the Topographical Ragan under the orders of Col. J, J. Abert, 
‘of the Topographical Bureau. 
» 1845. it 
oe 94 pp. Svo, with plates and ‘ map, haba 
