1042 An Observation on the Hybridization [November, 
pollen from the alpha and Livingston’s favorite. The produce 
from the cross-breds was one plant of the French upright, a hun- 
dred or more of the common form, and no intermediates. The 
fruit was all clustered, however, and of one type of bearing. The 
types of the tomato fruit have not as yet been sufficiently studied 
by us to allow of a judgment upon variability in this respect. 
Squash. —In 1883 the perfect gem and vegetable marrow 
squashes were crossed in both directions. The seed planted in 
1884 gave good types of the cocoanut, green-striped bergen and 
the courge d'Italie varieties. In 1883, the year the seed was 
saved, we had no plants of these varieties upon the station 
grounds. There were also some unknown forms, but none that 
could be called strictly intermediate between the varieties, and 
some which represented each parentage. 
Lettuce —In 1883 the green fringed and the deer tongue lettuce 
was crossed. In 1884 the crop yielded forms which could be 
referred to the Batavian, Silesian and Malta drumhead varieties, 
This year is hence the second generation from the cross. The number of plants 
under observation have been numerous, occupying three-twentieths of anacre. The 
types of the plants are French upright and the common, without intermediate forms. 
The types of the fruit are French upright, Livingston’s favorite, common red and 
great Chihuahua, and no intermediates that can be recognized. The last-named is 
precisely on type both in plant and fruit, but few plants as compared with the others. 
French upright crossed by acme. First generation. The types of plant either 
French moe or acme. The fruit acme, French upright and common red, and no 
interm 
French ek crossed by alpha. Second generation, The type of plant both 
kinds. The French upright o of plants have all French upright type of fruit. 
common type of plants bear fruit of the fig, pear, plum, alpha, common red, 
French upright and great Chihuahua type, and no intermediates that can be recog- 
nized. 
Currant crossed by Livingston’s favorite. First generation. The types of plant 
mostly the currant, but some few plants of the common: form, but slightly more up- 
right. The fruit is racemed like the currant, but of far larger size, about 114 inch in 
diameter. Although I have never seen fruit of this character before, yet the plant 
and the fruit correspond very closely with the description of the Solanum racemosum 
: forma of Bauhin’s Prodromus, ed. of 1671, p. 90; and we may legitimately 
_ Suspect atavism has reproduced this apparently lost variety. 
_ Turks cap-crossed by several large varieties in 1882, such as acme, trophy, may- 
flower and paragon. The first generation was grown in the greenhouse, and hence 
the crop of 1885 is the fourth generation, the selections having been made each year 
soundness and smoothness of fruit. ls foliage of the 1885 plants somewhat 
able but of the common type. The fruit can be referred to the apple, acme and 
r red. One plat from the earliest ad of this class has given constant foliage, 
uit small, of SEE variety type, and of constant form, 
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