W. TYSON, F.L.S. 
121 
names. He was of a cheerful disposition and, on occasions, a brilliant con- 
versationalist. If sometimes lie showed a little bitterness and even recklessness 
one could not help excusing it on account of the harsh manner in which fate 
had dealt with him. 
Note. In 1913 Mr Tyson’s “study-set” of marine algae was purchased by 
the Bolus Herbarium, and at his request is known as “ The Tyson-Collection 
of Marine Algae.” This is now available for the use of students, having been 
arranged in systematic order by Dr Delf and Miss Michell, whose account of 
the Collection appears in this Part. 
