LINN.EUS. 265 



occasionally experienced a return of his complaints, 

 which were relieved by the plentiful use of wild 

 strawberries. His account of the king's museum 

 appeared the following year. 



Besides his ordinary occupations of lecturing and 

 accompanying his pupils on their excursions into 

 the country, he sent forth successively improved 

 editions of several of his works, which he endeavour- 

 ed to bring up to the level of his expanding know- 

 ledge. The Stockholm Academy having offered a 

 prize, consisting of two gold medals, for the best 

 essay on the means of improving Lapland, he com- 

 posed a treatise on the subject, wiiich received the 

 approbation of that learned body. Although no 

 regular cultivation could be applied to so dreary a 

 region, he showed that considerable improvements 

 might be made by introducing plants which grow in 

 the mountainous districts of similar latitudes, and 

 especially by planting trees suited to the climate. 

 In 1759, the Imperial Academy of Sciences at Pe- 

 tersburg announced a premium for the best work 

 on the confirmation or refutation of the doctrine of 

 sexes in the vegetable kingdom. He wrote on this 

 topic also, in which he established the fact by new 

 and irrefragable arguments, and the reward was of 

 course adjudged to him. The motto which he af- 

 fixed to this tract was indicative of his prevailing 

 passion : " Famam extendere factis." 



The celebrity of his name now attracted pupils 

 from many parts of Europe ; obtained him admission 

 into most of the distinguished learned societies ; and 

 rendered him an object of attraction to travellers. 

 In 1762, he was elected a foreign member of the 

 Academy of Sciences of Paris, — a circumstance of 



