336 THE BOTANISTS OF PHILADELPHIA. 



The sessions of the College were held from the first of 

 ^larch until October, giving the students an opportunity to 

 teach school, of which privilege Dr. Wilson availed himself, 

 teaching for the next few years in several different places. 



In the winter of 1873 he went to Cambridge, Massa- 

 chusetts, to continue his botanical studies, which had been 

 begun in the State Agricultural College of ^lichigan. In 

 1874 he was appointed assistant to Professor Goodale, at 

 Cambridge, at the suggestion of Dr. Asa Gray, with whom 

 Dr. Wilson had studied the summer following his resigna- 

 tion from active teaching at Harvard University. In the 

 spring and summer of 1874 he worked constantly in a 

 private laboratory under the direction of Dr. Asa Gray, 

 who, during the years from 1873 to 1878, gave the young 

 botanist some of the most valuable lessons and suggestions 

 which came from any source whatsoever. 



Dr. Wilson remained at Cambridge until the close of 

 the college year of 1878, occupying the position of assistant 

 under Professor Goodale, at the same time doing a great 

 deal of teaching and tutoring outside. During the time 

 that he w^as at Cambridge he took various studies in the 

 University, at the Agassiz Museum in Zoology. During two 

 years of this time studies were carried on in chemistry, in 

 physics, and in modern languages, so that in 1878, when he 

 left, the degree of Bachelor of Science was granted him 

 from the Lawrence Scientific School. 



In the summer of 1878 the subject of this sketch 

 visited England, France, and in the fall, Germany, where 

 he matriculated at the University of Gottingen. He 

 remained at Gottingen until the spring of 1879, when he 

 went to Naples and matriculated at the University there, 



