CONE Nan Sy 
HMEROCATChIOMMrery ete ear ck Ns el ne ere ey Rei ayesha) ena 
iElistoricalenotes on crown-gall'and hairy-root---5....2-.2..--.--5----...4.---: 
Distribmtionto® the disease and related forms: ...2.2....:....-............... 
Geoorap nica idistributionss .: Gaeta eee = re ie ee 
ID IStEUO ML ONBINSINUITSeEICSs tens {eee cee nee one a elon ee a 
Description of the different forms of the disease on apple trees..............-- 
OEMS OMChO wile tet ee Se el eh eps Meee cies cue 2 Pk pans 
SONG Crowne ae eee a ts el pei eas 0 ae Reet meir Beet oi a0 2 
TE LBMRGL GIRONA TRESS Se eae ha aes cee mn cass pg ee At a Ra 
IBOKIMSIOlMMANKV TOOL sa eas. fogs hee ine epee ea ae eee 
PS UUT AN ONS S Uo) eo aah airs ah wy are 8 rel Ne Grae deans 
Woolly Skat Ob etO ri see se ica ee beta ee oe eS 
BTOOM-FOOG LOMMi seat Se ea is ae ee ee i nee eae 
Relation of sott;crowm-gall tohard crown-gall:-.-.5..-.-2.5....2..5----:* 
Relation or Malky-root toxcrowm-Calli=. 2495 an 9 ig 
Relationsof theorms of hairy-root to each) other! ...225-5 222-5... sae. 
Development ofthe formsvotthediseases:+.25255-- 25-0852 52 552525. 2a Sea. 
No development of the disease on seedlings without wounds..............- 
Greenhouse experiments with uninjured seedlings................... 
Greenhouse experiments with wounded seedlings.................... 
Nursery experiments with young seedlings.........:...........--...- 
Nursery experiments with older seedlings.......-.::.........--.....-- 
Relative development of the disease on budded and root-grafted trees in 
EMOMMMINS CI peer te ae Sener s Sees ee ya ee 
Bevelopment-on-budded. trees: ....... 25.2. 82.52 2-225. sses eee e- 
Development on-root-erafted trees. .........-.:2..- 22.2 22 222-2-se525- 
Relative development of each form of the disease in the nursery.......-..-. 
Development on_root-gratted trees:.-2.--..-.2-.--2-222.252+242-eeeee- 
Developmentron: budded. treess <2 cans. . sees yee se se 
Relative development of each form of the disease in the orchard.......... 
A study of nursery methods in root grafting as related to the development 
Gin CRG CAS Cait ote e fone st Cee eee Ae ae see ye a 
The slight effect from using different portions of seedling roots in root 
EIEN MNOS SEER eA eR en Men ume re tee he ees Pr ass ue 
Increased development of the disease due to the use of seedlings 
diseased with hairy-root in making root grafts...............------- 
Increased development of the disease due to the use of seedlings 
diseased with crown-gall in making root grafts.............--.------ 
186 5 
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