10 
his friendship, and so far was he from withholding it, 
that he promised me his services too, if such I needed, 
a promise he afterwards most loyally kept. This 
sacred friendship, thus spontaneously sealed, we fostered 
uninterruptedly for seven years in Upsala, at all times 
with the same fidelity, but with ever-increasing warmth 
and attachment. He was my closest and most intimate 
friend and I w r as his". 
The bond of friendship and fellowship between the 
two lasted through life, and proved not alone a source 
of mutual joy, but likewise a factor of the utmost im- 
portance in their several careers as scientific investiga- 
tors and scholars. The intercourse they had with one 
another is yet further dealt with in the above-mentioned 
Introduction and in "Autographic Notes by LJNNJEUS 
concerning Himself, published in 1823; in the latter 
he proceeds to characterise his friend in comparison 
with himself in the following manner: "ARTEDI was of 
a more retiring disposition than I, more seriously 
minded, more attentive to details, slow r er in observation 
and in everything he did, but, on the other hand, more 
accurate. As for myself, I was quicker in the actual 
doing of any piece of work, ARTEDI being prone to a 
certain extent to procrastinate; it did not, however, sel- 
dom happen that he had the laugh of me, by reason 
of my having to begin my work all over again because 
some important fact had escaped my memory." 
"It was inevitable", LJNN^US continues further on 
in the same work, "that a certain degree of good-na- 
tured rivalry should assert itself now and then between 
us. Thus, when I despaired of ever attaining to the 
same degree of familiarity with the lore of the alchem- 
ists that he was possessed of, I had reluctantly to 
acknowledge the fact and relinquished from that time 
forth the pursuit of that study altogether; he, again, 
to keep the balance true, as it were, obligingly desisted 
from the keen inquiry he had previously been following 
up in the department of Botany, which I was making 
