Dr. Gray enjoyed greatly the journey through the North Carolina mountains, and the traveling and accommodations were almost as rough as in the journeys thirty-three and thirty-five years before. The people, still cut off from the lower lands by roads that were mostly only used for horses, and where one traveled sometimes two or three days without meeting a wheeled vehicle, were very plain and primitive in their ways, and one had to depend at times on their hospitality for accommodations. But the scenery is striking and beautiful, and the forest unsurpassed for the magnificence of its grand trees, rich in variety and beauty. The party went first to New River Springs, then to the French Broad Hot Springs, and round by a rough journey to Asheville, then far away from railroads, where they were joined by Dr. and Mrs. Engelmann, and continued through the mountains to Cesar’s Head, whence they made their way by railroad through South Carolina and Georgia to Jonesboro; from Jonesboro going up Roan Mountain, a camping-out excursion. TO CHARLES DARWIN. December 5, 1876. ... Curious that one species should take pains to close fertilize some flowers, the other to cross all.... Now I want to beg of you to consider about a name for this kind of thing, on which, as a good judge, you could consult Bentham, or indeed, Hooker, if he can give it attention. This matter will need to come into generic or specific characters, and therefore wants a terse and unambiguous mode of expression in a single word. My old expression thirty or so years ago, “diœciodimorphous,” you reasonably objected to, implying separation of sexes (which, though, it need not do). Yours of “dimorphous” should be, as the lawyers say, void for vagueness, there being plenty of other kinds of dimorphism in flowers. Hildebrand’s, of “heterostylous,” the difference being in other things as well as style, and, I think, possible sometimes not in the style. The term will not work well in characters, whether in Latin or English. I have proposed, accordingly, in a little article not yet published, to use the term “heterogone,” in other form “heterogonous,” in Latin “Flores heterogoni,” with the counterpart “homogone,” “homogonous,” “Flores homogoni.” This means, you see, explicitly, diverse genitalia, and the [Greek: gonê] is used as in the common botanical term “perigonium.” TO R. W. CHURCH. February 5, 1877. Your friend Lord Blachford is an unrivaled expositor. I have just been reading, with extreme satisfaction, his article on the Reality of Duty. That naturally brought you to mind, and I vowed I would no longer be so negligent, but would acknowledge and thank you for your letter of August last, and for Professor Mozley’s sermons. They are excellent indeed, and it is saddening to have a man of such insight laid aside by illness, of a sort which probably does not diminish his desire, but destroys his power, to work....