THE MONTHLY BULLETIN. I 



They had been received from Mr. F. Foex, then of Eddy, New Mexico, who had 

 obtained them from fruits found on trees near Monterey, Mexico, where they had 

 been subjected to a temperature of about 22° Farenheit during several consecutive 

 nights when in blossom during the preceding winter. 



The seedling was grown in a pot and not planted out until the following spring. 

 The winter of that year (1S94) was very cold and the small tree was frosted down 

 to the ground and came up again the next spring. The tree began bearing the 

 fourth and fifth years from planting and has been bearing every year since except 

 the year of the heavy freeze of January, 1913. Buds of the tree were sent to 

 Professor Rolfs of Miami, Florida, in 1902. He top-worked them onto seedlings 

 and two years later obtained fruit. Professor Rolfs named the variety after Mr. 

 Ohappelow. by which name it has been known since. The tree is now 23 years 

 old and is the largest in California; possibly in the United States. The tree itself 

 has never been injured by frost since it was one year old, but several years the crop 

 of fruit has been lessened by an extra cold snap in blooming time. The tree has 

 always borne a crop with the exception of 1913, when the thermometer went down 

 to 10° and all the fruit and bloom were killed. It bloomed again later on, but only 

 a small number of fruits set. The record of the number of fruits since 1902 is as 

 follows: 1902, 310; 1903, 3S0; 1904, 605; 1905, 575; 1906, 235; 1907, 465; 190S, 

 1,209 ; 1909, 260 ; 1910, 2S5 ; 1911, 1,025 ; 1912, 350 ; 1913, 20 ; 1914, 3,215 ; 1915, 

 1,723. Seedlings of the Chappelow have borne fruit remarkably like that of the 

 parent tree, due either to its isolation which prevents cross-pollination with other 

 varieties or to the pure strain of seed from which it came. Budded trees have been 

 beating for several years in various parts of southern California. Some trees are 

 known to produce small, elongated, seedless fruits in addition to normal specimens. 



The variety was named and described by P. H. Rolfs under S. P. I. No. 12934 

 in 1905. A description, history and colored reproduction of the fruit is given in 

 the U. S. D. A. Yearbook for 1906, pp. 363, 364. An outline drawing was published 

 in 1904 in Bulletin 61, Bureau of Plant Industry, by P. H. Rolfs. 



Chili (Guat.). 



Imported as budwood from an altitude of 6,000 feet in Chili in June, 1911, by 

 D. E. Clower of Monrovia through Dr. W. E. Aughenbaugh. Described by K. A. 

 Ryerson in the Pomona Journal of February, 1913. 



Fig. 2. — Fruits of the Harman avocado should be picked from the tree Just 

 before they begin to color so as to avoid the softening at the apex which injures 

 the appearance and eating quality of the fruit. (Photo by the Division of Citri- 

 culture, University of California, Berkeley, Cal.) 



