164 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 1 



vestigations, preparing at this time his extensive account* of the Med- 

 iterranean Flour Moth. He was appointed state entomologist of 

 Maryland in 1896, organizing the state horticultural department, of 

 which he became chief. He was also at this time professor of inver- 

 tebrate zoology and entomology in the Maryland Agricultural College, 

 and entomologist to the Agricultural Experiment Station. He organ- 

 ized the State Horticultural Society and at the time he severed his con- 

 nection with the state was elected a life member, a unique honor. His 

 best work in economic entomology was done in Maryland. He took a 

 leading part in the enactment and enforcement of the law against San 

 Jose scale, and was the author of several important publications on 

 this pest. Continuing his work upon the Mediterranean flour moth 

 and upon the San Jose scale, he developed the possibilities of fumi- 

 gating with hydrocyanic acid gas, particularly in its relation to the 

 control of grain pests in mills. His book entitled "Fumigatioli 

 Methods, ' ' 1902, was the outcome of this work. He continued to write 

 articles on economic entomology for several years after his connection 

 with the American Agriculturist, and was also author of several works 

 on other than entomological subjects. He resigned his position as state 

 entomologist of Maryland in 1900 and became associate editor of the 

 American Agriculturist, a position which he held to the time of his 

 death. Professor Johnson was an exceedingly active man, being a 

 member of a number of scientific associations, such as the American 

 Association of Agricultural Colleges and Experiment Stations, So- 

 ciety for the Promotion of Agricultural Science, American Pomologi- 

 cal Society and the Association of Economic Entomologists. He was 

 appointed in July, 1907, a member of the board of control of the New 

 York State Experiment Station, and had been for several years a 

 director of the American Institute of New York City. He is survived 

 by his wife, a son and a daughter. His mother and several brothers 

 reside at Columbus, Ohio. Interment was at Lake View, Ithaca, N. Y. 

 The multifarious duties of an editorship prevented his giving much 

 attention to entomology in recent years, though he maintained to the 

 last a keen interest in this branch of work. In the death of Professor 

 Johnson, economic entomology has lost an enthusiastic, aggressive 

 champion, and the sad news has caused profound sorrow among en- 

 tomologists throughout the country. 



E. P. F. 



A. F. B. 



^1896, 19th report of the State Entomologist of Illinois, Appendix, p. 1-66. 



