292 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL.84 



He showed them the practical importance of entomology. In 1907 

 he was succeeded by A. Tullgren, who has carried on the work of his 

 predecessor in a very satisfactory way and has pubHshed a number 

 of sound papers. He has now the title of Professor. 



In the early part of Lampa's service under the State Agricultural 

 Experiment Station, Dr. Yngve Sjostedt was his first assistant until 

 1902, when he became the successor of Professor Aurivillius at the 

 Royal Museum of Natural History at Stockholm. Tullgren became 

 Sjostedt's successor at the Experiment Station. When Tullgren suc- 

 ceeded Lampa (in 1907) as Director of the Agricultural Experiment 

 Station, Dr. Ivar Tragardh became the assistant. Previous to 1909 

 he had been teaching entomology at the University of Upsala, 



In 191 5 the system of education in forestry was reorganized, and a 

 Forest Entomological Laboratory was attached to the Forest Ex- 

 periment Station, Doctor Tragardh being made the chief of this 

 laboratory. In 1921 the Entomological Laboratory was made an 

 independent department of the Station ; Doctor Tragardh was made 

 a professor and was given an assistant, Doctor Spessivtseff, a well 

 known authority on bark-beetles, formerly an assistant in St. Peters- 

 burg to Cholodkovsky and therefore a Russian refugee. 



Doctor Tragardh has done extraordinarily good work with forest 

 insects. He is a broad and sound man, and is acknowledged to be one 

 of the world's leaders in this field. Personally he is well known to a 

 great many entomologists, and has been able to attend the inter- 

 national congresses. During the summer of 1928 he came to the 

 United States and traveled extensively, visiting particularly the points 

 of especial interest in forest entomology. 



When Tragardh left the Agricultural Experiment Station in 191 5, 

 Dr. N. A. Kemner was made first assistant there, and in 1921 ento- 

 mologist. From this year there were also two trained assistants, 

 namely Dr. O. Lundblad and O. Ahlberg. In 1929 Doctor Kemner 

 was made Director of the Entomological Department of the Univer- 

 sity of Lund, and Doctor Lundblad then became entomologist. Under 

 the Agricultural Experiment Station, Professor Tullgren published 

 an account of insect injuries 191 1 and 1912-1916. The report for 

 1917-1921 was published over the; names of O. Lundblad and 

 A. Tullgren; that for 1922-1926 by O. Lundblad. 



Besides the workers already mentioned, all of whom have occupied 

 professional positions in applied entomology and whose many papers 

 have been published in the authorized records, there has always been 

 a number of scientists not professionally engaged in applied ento- 

 mology who occasionally have written good articles on the subject. 



