eer 
406 
and absorbing professional practice. He was 
able, however, to make, at long intervals, sev- 
eral visits to Europe (the last as recently as 
last year) largely for the purpose of botanical 
study ; although his opportunities for extended 
botanical explorations in his adopted land only 
came to him late. Twice in the last ten years 
of his life Dr. Engelmann was able to see Colo- 
rado; in 1876, he visited the southern Alle- 
ghany Mountains; and in 1880 made a long 
journey through the forests of the Pacific 
states, where he saw for the first time, in a 
state of nature, plants he had studied and 
described more than thirty years before. Dr. 
Engelmann’s associates in this long and ardu- 
ous journey will never forget his courage and 
industry, his enthusiasm and zeal, his abound- 
ing good nature, and his kindness and con- 
sideration of them and every one with whom 
he came in contact. 
Engelmann’s first botanical publication ap- 
peared as long ago as 1832, when, on the eve 
of his departure for the United States, he print- 
ed in Latin a dissertatio inauguralis, ‘ De An- 
tholysi prodromus,’ illustrated by drawings 
made-by the author. ‘This paper is still some- 
times referred to, and was certainly a remark- 
able production, in view of the youth of the 
writer, and the existing knowledge of vegetable 
morphology. No other botanical paper ap- 
peared from Dr. Engelmann’s pen until 1842, 
when. he published in the American journal 
of science his monograph of North-American 
Cuscutineae. He had, however, some time 
before, in association with Capt. C. Neyfeld, 
undertaken the editorship of Das westland, a 
journal printed in Heidelberg, and intended to 
make known to German emigrants the advan- 
tages of the Mississippi valley. This publica- 
tion did not outlive the first volume, which bears 
upon the titlepage the date of 1837, and which 
contains three articles by Engelmann, generally 
descriptive of the natural features of the west- 
ern country, with some account of his southern 
journey of 1833. If these early years in St. 
Louis were not prolific in botanical publication, 
their botanical occupations were not the less 
important and valuable. He made, at the time, 
large collections of western plants, then hardly, 
if at all, represented in European herbaria, 
distributing them freely among his German cor- 
respondents. At this time, too, he made the 
acquaintance of the authors of the ‘Flora of 
North America,’ to whom Engelmann first 
became known through the discoveries, by the 
younger of the two botanical partners in this. 
undertaking, of some of his specimens in the 
Berlin herbarium. This rather roundabout 
SCIENCE. 
[Vou. ILL, No. 61. 
introduction led to a warm friendship and close ~ 
and sympathetic scientific association, which 
has largely shaped the botanical studies over a 
great continent, and which death only has in- 
terrupted. 
. The appearance of the monograph on Cus- 
cutineae, which was soon republished in the 
Botanische zeitung and the London. journal of 
botany, established Engelmann’s reputation as 
a systematic botanist, and procured for him 
the correspondence of Hooker and other foreign 
botanists. Several new species are described 
in this paper, and the genus Lepidanche ‘pro- 
posed for a Cuscuta-like plant of the western 
prairies. Cuscuta always interested Dr. En- 
gelmann; and in 1859 he published in the 
Transactions of the St. Louis academy an elab- 
orate revision of the whole genus, for Panes 
he had long been collecting material. 
In 1842 he published in the American jour a 
of science a list of plants collected by Charles 
A. Geyer in Illinois and Missouri, in which 
several species are first described ; and in 1845, 
in the Journal of the Boston society cf natural 
history, in collaboration with Asa Gray, an 
enumeration of plants collected in western 
Texas by his countryman, Ferdinand Lind- 
heimer, a naturalist attached to the German 
colony of New Braunfels. - 
In 1848 was published his sketch of the 
botany of Dr. A. Wislizenus’ expedition. Dr. 
Wislizenus, a German physician and a resident 
of St. Louis, had been attached to Col. Doni- 
phan’s expedition, but was taken prisoner by 
the Mexicans, and carried to Chihuahua, where, 
as well as in the valley of the Rio Grande, 
he had made important botanical collections. 
These were afterwards placed in Dr. Engel- 
mann’s hands for elaboration. ‘The study of 
these collections exerted a powerful influence 
upon his subsequent botanical studies. They 
first drew his attention to Cactaceae and Pinus, 
which continued to occupy his thoughts for the 
remainder of his life, and of which his knowl- 
edge was unequalled. As early as 1856, Dr. 
Engelmann published in the Proceedings of the 
American academy a synopsis of the Cactaceae 
of the territory of the United States. Two 
years later appeared his ‘ Cactaceae of the 
boundary,’ in the second volume of the United 
States and Mexican boundary survey report. 
This paper, superbly illustrated by drawings 
made (under Dr. Engelmann’s direction) by 
Roethe, is, perhaps, his best-known botanical 
work. Dr. Engelmann has studied and de- 
scribed all the collections of Cactaceae which 
have from time to time been made in the 
Mexican boundary region, and, had he lived, 
