34 UNIVERSITY OF CALIFORNIA. 



July, though the canes were not quite as long as the canes on the Napa Riparia, I think 

 tha^t the growth of wood was of about equal weight. But in August, the difference in 

 "adaptation" began to show. When the long, hot, dry days came on, although the 

 ground was still moist and in good condition, the Nebraska vines stopped growing. 

 They did not get scorched, nor sunburned, nor sick, but they simply remained station- 

 ary. Their season of growth came to a sudden end. I do not doubt that frequent irri- 

 gation would have kept them growing, but as we do not propose to plant a vineyard that 

 will require irrigation, we thought it best to let them alone. 



On the other hand, the Napa Riparia kept on steadily growing until the frost came. 

 I have measured the growth of wood on adjoining rows of the two kinds of vines, and 

 I give you some of the figures to show how they run : 



Length of Canes. 



Nebraska Riparia. Napa Riparia. 



(Unselected variety.) (Practically selected varieties.) 



10 inches. 34 inches. 



11 inches. 44 inches. 

 20 inches. 40 inches. 

 13 inches. 48 inches. 



18 inches. 24 inches. 

 24 inches. 61 inches. 

 13 inches. 52 inches. 



19 inches. 72 inches. 



20 inches. 51 inches. 

 36 inches. 72 inches. 

 24 inches. 44 inches. 

 28 inches. 12 inches. 



Average growth : 20 inches. Average growth : 46 inches. 



*"- These figures are fairly taken, and the vines have grown in about the same ratio all 

 over the patch. Now I have come to the conclusion that the selected Riparia is worth 

 much more on our soil here than those that came fresh from the woods, doubtless from 

 the bank of some stream where the roots got all the water they required. I believe a 

 large number of these were planted down near Livermore, and it may be that on that 

 soil they have done better than here. If you can hear of any one down there that has 

 faith in the vines of this importation, on whose soil these vines have made gO9d, thrifty, 

 strong growth, I wish you would let me know, for I will sell the 2,000 rooted vines I have 

 on hand very cheap indeed. I do not wish to say that they are not good, but " there are 

 others," and they are so much better that we are going to use these others for our 



The Riparia Grande Glabre and Glorie de Montpellier made a still heavier growth than 

 the two sorts I have compared, but as they were grown in other soil and under different 

 conditions a comparison would not be strictly fair. Next year I shall have the Napa 

 Riparia and the " Montpellier" growing side by side, so that I can form a better opinion 

 as to their relative merits than I have now. Grafted on old vines, the *' Montpellier " 

 made a growth of 21 feet of cane where an unselected Riparia made a growth of 8 feet 

 and very spindly and poor at that. 



?? I send you by express typical vines of "Nebraska" Riparia and of the "Napa," to 

 illustrate their relative growth. You will notice near to root of the " Nebraska " vine 

 a long swelling. This was caused by a borer with which these vines were infested when 

 they arrived. ^1 think, though, that the disinfecting solution used on the cuttings must 

 have killed them all last year, for I have been unable to find any of the borers on the 

 vines this year. 



Very truly yours, 



FRANK F. SWETT. 



LENOIR; HERBEMONT. 



Lenoir Resistance to phylloxera, 12. Herbemont Resistance to phylloxera, 13. 



Owingjto the interest in this State in these two hybrids especially the 

 former and the quite extensive plantings already made, as well as those 

 contemplated, a somewhat fuller account of them is given than we 

 otherwise would. 



The best ampelographers hold that the Lenoir and the Herbemont are 

 hybrids of three species: the resistant species ^Estivalis, the resistant 

 Cinerea, and the non-resistant species Vinifera. The characteristics of 

 the Vinifera are less pronounced in the case of the Lenoir than in the 

 case of the Herbemont, or the Cunningham, which belongs to the same 

 group. 



The origin of these vines is very uncertain, and much of historical 



