200 AMERICAN VINES. 



in this case again, they have to be discarded. These examples 

 will guide the reader in the interpretation of the following 

 indications. 



It is evident that in the choice of a vine for reconstitution 

 we must consider: 



ist The resistance to phylloxera, already discussed. 



2nd. The influence of the soil, which is associated with : 



(I.) HUMIDITY. The vines which accommodate themselves 

 best to this condition are Cinerea, Mustang and its 

 hybrids, hybrids Vinifera X Cinerea, Rupestris du Lot, 

 Jacques, Herbemont, Vialla, Solonis, hybrids of Vinifera X 

 Rupestris, Vinifera X Riparia, York; then, Riparia, Rupes- 

 tris; amongst the direct producers, Othello, Canada, Autu- 

 chon, Cornucopia, Herbemont, Noah, Elvira, etc., which are 

 not affected. 



(II.) COMPACTNESS. For this the American vines may be 

 classed in the same order as the preceding item. 



(III.) ARIDITY. The Rupestris is the vine which does 

 best in poor soils ; then come Hybrids Vinifera X Rupestris, 

 Jacques, Herbemont, hybrids Vinifera X Riparia, Vialla, 

 Cordifolia X Rupestris, Riparia X Rupestris, Solonis, 

 Riparia. 



(IV.) PREDOMINANCE OF SILICA. (a) Under the form 

 of fine sand Vialla, Rupestris du Lot, hybrids Vinifera X 

 Rupestris, hybrids Vinifera X Riparia, Jacques, Herbemont, 

 Rupestris, Solonis, Riparia, and the least resistant vines. 

 (b) Under the form of coarse sand Hybrids Vinifera X 

 Rupestris, Rupestris du Lot, hybrids Vinifera X Riparia, 

 Rupestris, Riparia, Jacquez, Solonis. s 



(V.) AMOUNT OF LIMESTONE IN THE SOIL. From this point 

 of view the American vines may be classed as follows : 



In the foremost place Hybrids Vinifera X Berlandieri, 

 and the Berlandieri, Riparia X Berlandieri, Rupestris X Ber- 

 landieri, the hybrids Vinifera X Riparia, hybrids Vinifera X 

 Rupestris, Jacquez, Solonis, Rupestris du Lot, Riparia X 

 Rupestris. Finally, the less suitable Riparia, Rupestris, 

 York, Vialla. Amongst the direct-producers Cornucopia, 

 Othello, Autuchon, Canada, Brandt, not much affected by 

 limestone ; Noah, Elvira, much affected. 



In writing down a scale of resistance to chlorosis, we obtain 

 for the -value of the various graft-bearers : 



No. 17 and above, V. Vinifera, Chasselas X Berlandieri 

 or 4IB (Millardet and de Grasset) r Tisserand or Cabernet X 



