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A journey in Normandy with Sir J. D. Hooker had 

 been planned for May, but Sir Joseph was unable to 

 leave England, so Dr. Gray arranged to go to Vienna. 

 He greatly enjoyed the railroad journey from Bale, in 

 May, the fruit-trees white with blossoms about Lake 

 Zurich, then the wilder mountain scenery, and Salz- 

 burg, all bringing back the memories of his first 

 European journey forty-eight years before. 



TO A. DE CANDOLLE. 



HERBARIUM, KEW, April 23, 1887. 



MY DEAR DE CANDOLLE,- You will be a little 

 surprised at the sudden transfer of Mrs. Gray and my- 

 self to England ; but I wanted a vacation and one 

 more bit of pleasant travel with Mrs. Gray while we 

 are both alive and capable of enjoying it. Whether I 

 shall look in upon you at Geneva is doubtful, but it 

 may be, even for a moment. We never expect to 

 have repeated the pleasant week at Geneva of the 

 spring of 1881. 



We expect to go to Paris early in May, but subse- 

 quent movements are uncertain. 



Always, dear De Candolle, affectionately yours, 



ASA GRAY. 



TO . 



May 15, 1887. 



I think the journey from Bale, in Switzerland, to 

 Salzburg was wonderfully fine and a great success, 

 and that May is a good time to do it, while there is 

 plenty of snow in the mountains. Lake Wallenstadt 

 showed to great advantage. And I had no idea that 

 the pass of the Arlberg, from Feldkirk to Innspruck, 

 was so high or so very fine. I believe it is the highest 



