Fee ee ener ene a en 
&T. 41,] TO CHARLES WRIGHT. 389 
Dr. Gray was an immense worker. After his 
morning mail was received and looked over, that 
he might answer any imperative questions, he too 
daylight for his scientific work, and, with pauses 
for meals, and the necessary interruptions that 
came at times, he kept steadily on all the day. He 
wrote his letters and his elementary botanical works 
mostly in the evening. But in his younger days his 
eyes were unusually strong, and he would work with 
the microscope by lamp-light as readily as by day- 
light. 
Though a steady and unwearying worker he was 
not rapid. He would throw aside sheet after sheet to 
be rewritten, especially if there was anything he 
wished to make particularly clear and strong, or 
any reasoning to be worked out from the soundest 
point of view. It was always a wonder to those 
about him that he could stand as he did the unceasing 
labor, but he was a sound sleeper even if the hours 
might be short, and of a vigorous, wiry, active tempera- 
ment, and when he did take a holiday, he took it heart- 
His rest and recreation were in journeys, longer 
or shorter, and every two or three years some lone 
outing would be taken, to give him the needed re- 
Srechmet. But he must always be busy even then, 
somewhere to go, something to see; rest in quiet 
seemed impossible to him for more than a day at a 
time. 
TO CHARLES WRIGHT. 
CAMBRIDGE, January 23, 1852. 
I am printing on “ Plante Wrightiane,” the first 
part of which (as I work in so much general matter, 
especially Tex-Mexican), to the end of Composit, will 
