110 Minnesota Academy of Science 



his new books and his collection of fungus, he shut himself up 

 in his little office. His trips for collecting frequently took him 

 down the gorge of the Mississippi, passing my home. He rode 

 in a buck-board buggy, and he made it an invariable rule never 

 to make his horse travel except at a walk. His horse acquired 

 a very rapid walking speed, and learned where to stop and when 

 to start without the ceremony of unhitching. His intense appli- 

 cation to the microscope, using artificial light, injured his eye- 

 sight, and though he did not entirely lose the use of his eyes for 

 several years, he abandoned his microscopic work and thereafter, 

 as his health began to fail, he withdrew more and more within 

 himself and from contact with his friends and neighbors, and 

 but rarely made any allusion to the active affairs in the midst of 

 which he lived. His final sickness was painful and prolonged. 

 He died January 27, 1906, at the age of 81 years. At the meet- 

 ing of February 6th following, Secretary Gale made appreciative 

 testimony to the life and work of Dr. Johnson, printed in Volume 

 IV of our Bulletins. His contributions to the first and second 

 volumes were numerous and valuable. He was president during 

 six trying years. His last communication was a gift to the mu- 

 seum of 177 species of paleozoic fossils, with duplicates, April 

 8, 1890. 



Dr. C. E. Rogers, when he signed the charter of the Acad- 

 emy, was a promising young physician of Minneapolis, but he 

 did not remain there long, and I have not been able to find any 

 definite information of his whereabouts in later years. I can 

 only recall that he was for a time at Carlton, Minn., where he 

 was in the drug business, and that after a short return to Minne- 

 apolis, he went to Cuba and thence to Central America, after 

 which nothing further is known of him. He was one of the 

 first Trustees of the Academy, but so far as our records 

 show he made no contributions to the scientific programs. His 

 name appears as a member of the standing committees for Zool- 

 ogy and Comparative Anatomy and for Conchology for 1873. 



Dr. Charles Simpson, when the Academy was organized, 

 was associated with Dr. Johnson in the practice of medicine and 

 had a joint office in the Wensinger Block, corner of Main street 

 and Central avenue, in St. Anthony. He was a young man, and 

 as junior partner with Johnson was guided and aided by him in 



