There is nothing to teil how the microscope which 
Linnaeus gave to his friend Bernard Jussieu came into 
the possession of Jacob Henrici. Mr. Jacob F. 
Henrici in the Proceedings of the American Society 
of Microscopists, Volume IX, page 214, states that 
the microscope is said to have belonged to Frederick 
Rapp, one of the founders of the society, a nephew of 
George Rapp, who came over from Germany in 
1804, and who died at Economy in 1834. He is 
said to have been a man of much intellectual culture. 
In conversation with Mr. Jacob F. Henrici, he informs 
me that the statement made by him was in error. 
Since publishing that account of the microscope he 
ascertained from the late Dr. Benjamin Feicht, who 
was a physician at Economy, that it was the property 
of a German physician, who came to Economy from 
the fatherland in destitute circumstances and in poor 
health, and who died there. The microscope was 
among his effects at the time of his death, and, as he 
had no known relatives on either side of the Atlantic, 
it remained in the possession of Mr. Jacob Henrici, 
who gave it to his nephew, who, as above stated, 
transferred it to the custody of the Carnegie Museum. 
Whatever the story of the microscope, its inscrip¬ 
tion recalls the fact, known to all biographers of 
Linnaeus, that the immortal Swede spent the summer 
of the year 1738 in the city of Paris, where he formed 
