214 CITRUS FRUITS AND THEIR CULTURE. 



the trees of two varieties of the twenty-five had to be reset, leav- 

 ing but twenty-three varieties 92 trees for actual comparison. 

 It would require too much space to give exact sizes of every 

 tree and the actual number of oranges on each tree, although 

 the record that I have just completed shows this. Following is 

 a summary of the twenty-three varieties: 



Average height trees on sour stock, 8 feet, 2 inches. 



Average breadth trees on sour stock, 9 feet, 2 inches. 



Average height trees on C. trifoliata, 6 feet, 2 inches. 



Average breadth trees on C. trifoliata, 7 feet. 



Adding together the average height and breadth the trees 

 on sour stock would be represented by 17 feet, 4 inches. 



Adding together the average height and breadth the trees 

 on C. trifoliata would be represented by 13 feet, 2 inches. 



Adding the actual number of fruit that these trees are now 

 holding to the number they produced last year, and dividing by 

 the number of trees, we find those on sour have a total aver- 

 age of 69 oranges per tree for the two years, and those on C. 

 trifoliata have 93 oranges to the tree for the two years an in- 

 crease to date of just about one-third over those on sour. 



It is not to be expected that these trees on C. trifoliata will 

 continue indefinitely to produce more oranges per tree than 

 those on sour, and it may be that when the trees on sour attain 

 full size results per tree will be in favor of those on sour. But, 

 be that as it may, here is a point that is generally overlooked: 

 by setting the trees on C. trifoliata two-thirds or three-quarters 

 as far apart as those on sour the number of trees per acre is 

 doubled. This is about the comparative distance that we would 

 recommend one-quarter to one-third less distance on C. trifol- 

 iata than would be given those on sour. As above stated, this 

 will double the number of trees to the acre and, figured on that 

 basis, the result so far would have been an increase in fruit 

 of 270 per cent from the trees on C. trifoliata above those on 

 sour for an equal acreage. This, taken in conjunction with the 

 facFthat trees on C. trifoliata can be frozen to the banking one 

 year out of three and still produce a good crop of fruit one year 

 out of three, proves its extra advantages for frosty sections, 

 even if we leave out entirely the question of hardiness. Last 

 winter I personally picked a box and a half of Ruby oranges 



