18 
let production of the high priced varieties would more 
than pay for the greenhouse the first season. I do not 
know whether anyone has tried this but it would seem 
worthy of a trial in any climate where the normal grow¬ 
ing season is short. Those who love to experiment will 
doubtless try out the effect of glass of various colors, 
and also electricity. 
TABLE OF BULB SIZES 
No. 1 
1 V 2 " and up 
No. 4 
%" - 1 " 
No. 2 
ivu'-imt 
No. 5 
y 2 " - %" 
No. 3 
1" - iti" 
No. 6 
V2 " and less 
Some confusion exists in the numbering of the vari¬ 
ous sizes and for that reason we have inserted the 
table of sizes here so that we may be understood when 
referring to any size by number. This table is the 
one most generally accepted. The bulbs are graded ac¬ 
cording to the distance across their diameter. For in¬ 
stance, a No. 3 bulb is that size ranging from 1 to 1*4 
inches in diameter. A large No. 1 bulb is sometimes 
designated as an Extra size and may run anywhere 
from 2 to 4 inches in diameter. Some growers class 
anything above 1 inch in diameter as a No. 1 or first 
size bulb, but this is not generally the rule. 
Where the bulbs are grown in quantity the smaller 
sizes may easily be graded by passing them over 
screens having mesh of 1 / 2 -inch, %-inch, etc. Some 
use a grading stick made of a piece of lath or shingle 
having a row of notches cut along the side, the notches 
being 1 / 2 -inch, %-inch, 1 -inch, 114 -inches and 114 -inches 
in width. A bulb not quite large enough to fill the 
14 -inch notch would be No. 6. Or if a little too large 
