HORTTCULTURK. 245 



rate naming: of certain varieties of this vegetable, the case of Black Seeded Tennis Ball 

 is stated. Of this variety .'^4 alleged synonyms were found in seedsmen's catalogues, 

 then of these 34 names there were ninuerous alleged synonyms, then synonyms of 

 these, until altogether 151 names were collected. Many of these alleged synonyms, 

 however, are known to be entirely distinct varieties. It is to obtain accurate reliable 

 information along these lines with different vegetal)les that this work is being under- 

 taken. 



The development of the trucking interests, F. S. E.\rle ( l\ S. Dept. Agr. Year- 

 book 1900, pp. 4^7-45-2). — A historical and geographical review of truck farming in 

 this country, with popular accounts of transportation, marketing, packing, and 

 grading of truck produce. 



Growth of the North Carolina trucking industry [Bid. North Carolina State 

 Bd. Agr., -22 {1901), No. 4, pp- 31, 32). — Some statistics are given of the vegetables, 

 mnskmelons, dewberries, strawberries, potatoes, etc., shipped from the trucking 

 district along the Atlantic coast of North Carolina in 1900, with comparative data 

 for earlier years in some instances. The production of strawberries has increased 

 from 5,254,016 qt. in 1897 to 11,044,064 qt. in 1900. 



Report of the horticulturist, G. H. Powell {Delaware Sta. Rpt. 1900, pp. 99- 

 141, figs. 9) . — This report covers the following subjects: The sour cherries of America, 

 pollination and thinning of pears, and a preliminary report on the pollination of 

 apples. The nomenclature in use in cherry literature is discussed, and the probable 

 origin of the words Amarelle, Kentish, Morello, Griotte, and Weichsel, is pointed 

 out. 



The sour cherry {Prunus cerasus) is arranged in 4 groups: Montmorency group, 

 (English) Morello, Brusseler Branne, and Vladimir. Historical and descriptive 

 notes are given on the more important varieties under each group. For commercial 

 orchards in the East the author prefers Montmorency and Morello. Where earliness 

 is the principal end sought, Richmond is recommended. Other varieties that seem 

 worthy of trial are as follows: "Montmorency group. — June Amarelle, King, Lancas- 

 ter, Sklanka, Wier No. 2; Morello group. — Double Natte; Brusseler Braune group. — 

 Bessarabian, Brusseler Braune. For the West the Ostheim may be added to the 

 Morello group, also Wragg, where it differs from Morello ; and for Canada the Ostheim, 

 Minnesota, and Kloskov Morello." 



In the experimental work with Kieffer pears, the problems studied were the 

 degree of fertility or sterility of the variety, the influence of several different pears 

 used as pollenizers, and the behavior of the variety in different places. Pollen from 

 Duchess, Bartlett, Howell, Lawrence, Garber, Le Conte, and Kieffer was used. Out 

 of 873 crosses on Kieffer, 647 or 76.4 per cent started to grow. When Kieffer was 

 poUenized by itself only 25 out of 596 pollenized blossoms started to grow. This is 

 but 4.2 per cent. There was a considerable variation in the susceptibility of the 

 Kieffer to its own pollen in different localities. 



The vegetative influence of the pollen from different sources was noted. In the case 

 of self-pollenized Kieffer blossoms the pear starts slowly into growth, very gradually 

 assumes a dark green color, and is retarded in subsequent development. "The 

 cross-fertilized pear, on the other hand, begins a most active development innnedi- 

 ately, and at the end of 2 weeks is twice the size of the self-fertilized fruit." 



For practicral purpo.ses, the author states that Kieffer should be considered self- 

 sterile in Delaware. There is no entirely satisfactory variety for use as a [)ollenizer 

 for Kieffer. The Garber seems to be one of the most promising. Le Conte is con- 

 sidered undesirable, as it is susceptible to core rot. Dwarf Bartlett, Duchess, Man- 

 ning, or Howell may be used. The practical orchard deductions from the experiment 

 are to the effect that while Kieffer may bear in solid blocks, better fruit is ol)tained 

 if it is cross pollenized, and for this purjjose every third row in the orchard should 

 be planted to a variety other than Kieffer. 



