106 
LINNAEUS 
instruct his sons in Natural History.” The impression 
made upon the Governor by the report of the expe¬ 
dition resulted in his permission to his sons and their 
tutor to undertake a similar journey in the following 
summer. The regard and affection entertained for 
their teacher by his pupils are shown in the warm¬ 
hearted, elegant Latin letter written during this trip, 
on the ist September, 1735, from Roraas, to their 
teacher, then in Holland. 
Immediately after the completion of the report, 
he began the composition of his “ Pluto suecicus.” 
What finally induced him to take up this work was 
that in Falun he could thereby impart instruction. 
He succeeded in his endeavours and gave much de¬ 
light to the mining industry. This new “ Vulcanus 
docimasticus ” was the ground-work for a course of 
lectures on assaying in the hired mining Assay 
Office, to a numerous audience. Each paid a fee of 
12 to 13 silver dalers [18s. to 19s. 6d.] which quickly 
brought in a sum of 101 dalers {_£*] ns. 6d.] He 
also started the practice of medicine, and succeeded 
in making a modest addition to his income. Pre¬ 
sumably this was the medical occupation which 
induced him to draw up still another work, “ Najades 
suecicae ” concerning the Swedish medicinal springs. 
It may be added that as Governor Reuterholm had 
a fine library of choice books on economics, travels, 
etc., to which Linnams had free access, it is easy to 
see that he did not lack work. But this did not debar 
him from the social life which, as an esteemed guest, 
he enjoyed with the town’s foremost families, so 
naturally he throve amazingly, and thought that in 
Falun he had come into a new world where everybody 
loved and favoured him. Then, too, the summer’s 
pleasant journey aroused a desire to undertake simi¬ 
lar ones to other parts of the country. He considered 
that each province had its peculiarity, and considered 
how each might be improved to the advantage to 
Sweden if all the provinces were investigated and 
