COMMERCIAL DUTCH-BULB CULTURE. 47 
Single yelloio. 
Yellow Hammer, King of the Yellows. 
Double red and rose. 
Bouquet Royal, President Roosevelt, Prince of Orange. 
Double white and blush. 
Bouquet Royal, Isabella, Prince of Waterloo. 
Double blue. 
Bloksberg, General Kohler, Van Speyk. 
Double yellow. 
Goethe, AVilliam III. 
BULB LITERATURE. 
The literature of bulbs is exceedingly varied and exhaustive, but 
commonly not available to the average reader. American writings 
are fragmentary, although they also are quite voluminous. In 
spite of these facts, anyone with a little effort may get in touch with 
abundant sources of information on the subject. There are four 
main sources to consult — 
(1) Florist, horticultural, and agricultural papers. These are replete with 
writings on various phases of the subject, and every issue of many of them 
carries advertisements of bulb literature. 
(2) Of bull) books there are many. They are exhaustive and comprehensive 
and written in English. A few are American, but most of them are of British 
origin. 
(3) Florist catalogues contain succinct and pointed information regarding 
the handling of bulbs for decoration. Some of the larger houses issue sepa- 
rate leaflets and pamphlets on methods of culture. These may be had for the 
asking when purchasing bulbs. 
(4) The florists have the columns of their trade papers, as stated on a 
previous page. Here are to be found the crystallized personal experiences of ex- 
perts in the commercial production of florist materials. 
DEFINITIONS. 
Much of the information in bulb literature and even in popular 
catalogues is in language quite strange to the uninitiated. Like 
every other specialized line of endeavor, the bulb business possesses 
a considerable language of its own. The following definitions will 
assist in a better understanding of some of these expressions. 
Barrii. — A group of narcissi having small chalice-cupped coronas or trumpets. 
Bed. — A Dutch bulb bed is a meter wide, of any convenient length, but usually 
about 10 meters (about 33 feet) long. 
Bicolor. — A trumpet narcissus with yellow trumpets and white perianth seg- 
ments. 
Bizarres. — Tulips of various shades of scarlet to brown in the breeder and 
broken sections, but, unlike the bybloemens, they have a yellow ground. 
Blower. — A machine or contrivance for removing the loose hulls and other light 
material from bulbs. 
Breeders. — Tulips with self-colored flowers. The color of the base of the flower 
is not taken into account. 
