VISIT TO ENGLAND 
159 
speedily. Further came the authorship of his works 
“ Corollarium,” “Methodus sexualis,” and “Viridarium 
Cliffortianum,” the translation into Latin of his friend 
Browallius’s “ Thoughts on Natural History/’ with a 
preface by the translator, and the completion of his 
“Flora lapponica” and “Genera plantarum ” which 
were begun before he visited England. The result 
was that his books, which bear the date of 1737, con¬ 
sist of nearly 500 pages in large folio, and more than 
I, 350 pages in octavo with 46 plates. If that be 
marvellous, it is still more so if one takes into account 
the scientific value of the said works and the great 
influence which they exercised on reforming and 
developing botany. It will further be seen that the 
said year 1737 did not end before he was busily 
engaged with writing and printing other and important 
productions. 
Linnaeus was fully justified in declaring that he had 
carried through an amount of work, which before had 
hardly been witnessed. Although we cannot definitely 
adduce all the objects he undertook at that time, it is 
possible to set forth the extensive, constant and varied 
correspondence which he conducted with naturalists in 
many countries. Among those with whom he inter¬ 
changed letters, we may note such men as Johann 
Ammann, botanical professor at St. Petersburg, A. E. 
Buchner at Halle, Dillenius, Fahrenheit, the celebrated 
physicist, J. Gesner, professor at Zurich, Albert von 
Haller, the world renowned physician and naturalist 
at Gottingen, J. E. Hebenstreit, professor of medicine 
at Leipzig, L. Heister, professor of botany at Helm- 
stedt, F. C. Lesserus, C. T. Ludwig at Leipzig, 
F. O. Mencken, a Polish Court Councillor, P. H. G. 
Moehring, doctor of medicine in Jena, Fr. Boissier de 
la Croix de Sauvages, medical professor at Montpellier, 
J. Scheuchzer, professor and musician at Zurich, J. G. 
Siegesbeck, botanic demonstrator at St. Petersburg, 
Sir Hans Sloane, C. J. Trew, medical doctor at Niirn- 
berg, and many others, not to mention his Dutch 
