140 BIOGRAPHICAL ACCOUNT OF 
Amid the fields, and woods, and smiling country which surround 
Paris, and whither he was at a future period to conduct his own pupils, 
our young student of botany learned his first solitary lessons. But, 
according to custom, he also pursued the study of medicine, as his 
predecessors had done; and it being imperative then, to combine the 
title of doctor with that of botanist, the young De Jussieu went through 
the faculty course. At this period of life he became intimately ac- 
quainted with Achille Richard and Ad. Brongniart, and the identity of 
pursuits rendered their friendship all the closer. 
The thesis with which our student completed, in 1824, his medical 
studies, was also his désué in botany. He took for his subject the 
Euphorbiaceae, discussing, at the same time, their medical properties 
and natural affinities as combined together, under the following title, 
“Plante que genere conveniunt etiam virtute conveniunt, que ordine 
naturali continentur etiam virtute propius accedunt.” ‘The thesis was 
couched in the Latin tongue, which was a rare piece of hardihood at 
that period; but its talent justified the innovation. 
. Kach one of us, Gentlemen, when entering into life, brings with him 
an intellectual and moral and physical individuality; but our tenden- 
eies, and our readiness to adopt certain ideas, in preference to others, 
are affected by the circumstances ín which we are placed, and our na- 
tive faculties bear, more or less, the stamp of surrounding influences. 
Adrien de Jussieu could no more elude these impressions than other 
men can; and, fortunately for him, his friends were all of the most 
. advantageous kind. L. C. Richard, Ampère, and Desfontaines were 
among his earliest associates, the inmates of his paternal home; soon 
after, Charles Sigismund Kunth, an admirable botanist, became his 
companion in work, and aided him in making many admirable analyses. 
When Antoine-Laurent de Jussieu began to succumb to the weight of 
. years, M. Roeper led Adrien’s mind towards morphological studies ; 
. and his German naturalist’s Essay for a Monograph of Euphorbiacee 
called Adrien de Jussieu's attention to similar subjects; while this in- 
tercourse of two men,'both pursuing the same career, produced no 
rivalry except that of the kindliest friendship, 
- Iw 1826, after Antoine-Laurent de Jussieu had held, for 5 
years, the post of Professor of Botany, he began to think of retiring 
-and the assembled professors of the Museum then nominated his son 
- Adrien to the Professorship of Rural Botany, an honour which had 
