90 THE CROWN-GALL AND HAIRY-ROOT OF THE APPLE TREE, 
TABLE XXXIV.—Condition of the roots of the trees in orchards 1 and 2 at the time of 
planting. 
Number Healthy trees. Gailed trees. 
Number of orchard. a ees 
anted. 
eae Number. | Percent. | Number. | Per cent. 
OD ae Se Pine eRe AS Lk a eee fateay UY SOL ay EB Rr 208 112 53.8 96 46. 2 
DR oF We UR Here Tse A pear cy asi aes ene Plier fue SES 261 122 46.7 139 53.3 
Th Galle etic EGS re een cde Sek eee 469 234 49.9 235 50. 1 
TaBLE XXXV.—Condition of the roots of the trees in orchards 1 and 2 after six years’ 
growth. 
Dead trees. Healthy trees. Galled trees. Hairy-rooted trees. 
Number of orchard. 
Number. | Per cent. | Number.| Per cent.| Number.| Per cent. | Number. | Per cent. 
LS GREE Sab eae Gems: 18 8.6 115 55. 3 21 10. 1 54 26. 0 
Ue ores Penis laneen th 35 13. 4 IB 42.5 53 20. 3 62 23.8 
Rota se 53 11.3 226 48. 2 74 15.8 116 24.7 
TABLE XXXVI.—Results from experiments showing the development of disease wpon 
healthy trees grown for six years in orchards 1 and 2. 
Healthy Condition of trees after six years. 
trees et 
planted. | ead. Healthy.| Galled. | Hairy. 
Number of orchard. 
NG a ROR Ses Seca Sa tt gp ici Dargai eS a aT Eo 112 10 83 1 18 
Dv TRISBES DS RES AES Z ESSER S area, Cyt ae aie SM siete ip Re ay, wR 122 13 _ 70 10 29 
A Yo re eal sees KAD Urea lee cM Rn) tks oe 234 23 153 11 AT 
POE COT ee a aN aD oe age 100 9.8 65.4 4.7 20.1 
TaBLE XX XVII.—Results of experiments showing the recovery of diseased trees during 
six years in orchards 1 and 2. 
Condition of trees after six years. 
Diseased 
trees 
planted |) ead: Benen Galled. | Hairy. 
Number of orchard. 
SPs Sea ee ah ok UAL Sean a niceg Ea 96 8 32 20 36 
Sp paisa hd nee ae iy eer eC ae 139 22 4] 43 33 
Mo balicscs esti ee ern ieee ER is 235 30 73 63 69 
PGTiGe nite chs eis er a eI an ape 100 12.8 ans al 26. 8 29.3 
