On the Fvtato Disease, 499 
were double the size of any, planted in the spring. The cause of 
the failure of lots 1 and 2 was the decay of the tubers before they 
vegetated, produced by the retention of moisture by the dung. 
Bryanston Garden Potatoes planted in November and December. 
Lot 1. 8 Bushels sound Ncue diseased. 
2. 7 „ 
The produce of the sprouts planted from the potatoes in the 
box was sound and good. 
Bryanston Field Potatoes planted in April, 1846. 
Lot 1. 13 Bushels sound ^ bushel diseased. 
2. 49 „ 9 
3. 36 ,, 1^ ., 
Mon. — The most regular crop was produced by the eyes which had been 
scooped from the tubers a short time only before planting, but 
the rest were nnt deficient in crop. 
Lot 4. 1 Bushel sound. 
Mem. — There api)eared to be almost no vegetative power in these tubers 
under any circumstances. 
\M\.b. 1 05 Bushels sound . . • . . 23 bushels diseased. 
6. 66 ,, 13 „ 
Men. — Although lot 6 appeared most early for many weeks, yet there was 
no difference at the time of harvest. 
Bryanston Garden Potatoes. 
Bshb. Sound. Bshls. Diseased. 
Lot. 7. Planted Jan. 2nd. Wimbome Kidnev . . 4 1^ 
12th. Ash-leaf 5 0 
Feb. 12th. Do. .... 18 I» 
14th. Wimbome Kidney . . 12 5 
16th. Porchester .... 18 3 
IStlu Ash-leaf 3 0 
18th. AYimbome Kidney . . 7 i 
18th. Porchester .... 8 J- 
Apr. 4th. Ash-leaf .5 1 
6th. Steel's Early ProliHc . I J 
6th, New Ash-leaf . . . i 1 Peck. 
6th. Porchester . . . . i 1 ., 
Lot 8. ... . 16th. Mexico 2^ 5 „ 
Lot 9 30th. New Grenada . . . J Peck. |„ 
Lot 10. Seedlings raised from seed sown in March, \ sound, \ diseased. 
Lot 11. The produce of the tubers raised from diseased potatoes grown in 1845 
was an average crop, ^ sound, ^ diseased. 
Lot 12. An untenanted allotment garden was planted in May with cut sets on very 
good dung, and no potato produced was larger than a marble. 
The conclusions at which I have arrived are — 1st. That the 
autumn planting, at the depth of 6 inches, is the most advisable 
system, and that the land should be prepared by the means best 
suited to its quality in the preceding Spring, e.g. well manured 
for tares or rape, and turnips, that crop fed cff early, and the 
land ploughed as soon as possible into what are called Northum- 
berland ridges. 
