42 BULLETIN 1082, U. S. DEPARTMENT OF AGRICULTURE. 
Table 5. — Propagation of tulip bulbs by rows in the Puget Sound region in 1920 — Contd, 
Bulbs 
planted. 
Number of bulbs dug of each size (centimeters). 
Name and variety. 
Size 
(cen- 
time- 
ters). 
Num- 
ber to 
row. 
14 
13 
12 
11 
10 
9 
8 
7 
6 
5 
4 
3 
8 
8 
8 
7 
5 
8 
7 
5 
7 
68 
7 
5 
7 
5 
7 
( d ) 
7 
8 
5 
8 
8 
5 
14 
14 
14 
21 
35 
14 
21 
35 
21 
14 
21 
35 
21 
35 
21 
50 
21 
14 
35 
14 
14 
35 
2 
5 
4 
4 
"5" 
10 
8 
4 
1 
14 
9 
9 
8 
6 
5 
7 
9 
10 
10 
"4" 
9 
9 
9 
11 
6 
10 
**6* 
6 
6 
3 
8 
5 
3 
7 
3 
6 
"s 
9 
7 
4 
1 
3 
4 
3 
3 
8 
Do 
7 
3 
4 
6 
5 
4 
6 
11 
5 
'l2" 
7 
*i<s' 
4 
'24" 
3 
4 
7 
17 
6 
3 
9 
7 
.... 
15 
1 
5 
'"%' 
2 
9 
6 
7 
12 
8 
10 
4 
'io" 
9 
2 
3 
"9" 
6 
7 
6 
.... 
'io' 
"22" 
3 
8 
*ii" 
3 
Do 
4 
The Sultan 
2 
6 
7 
9 
"6' 
4 
5 
3 
8 
5 
"i2" 
9 
7 
8 
2 
1 
Do 
Do 
13 
7 
7 
*i3' 
3 
8 
7 
11 
"l 
10 
8 
3 
Do 
2 
6 
1 
3 
5 
1 
1 
10 
5 
2 
7 
Do . 
5 
Do 
9 
Do .... 
1 
2 
Do 
10 
Do .. 
3 
7 
Do 
18 
1 
2 
8 
9 
7 
5 
2 
6 
5 
Do 
William III 
8 
Do 
8 
10 
6 
3 
4 
"X 
1 
8 
s 
b An average in round numbers of 10 readings. 
d Under 5 centimeters. 
PROPAGATION REVEALED BY THE PLANTING RECORD. 
Another way of judging of the performance of tulip stocks is by a 
comparison of planting records from year to year. With this, of 
course, must be coupled the turn-off. It should be noted that it is 
at planting time that the bulb grower gets a count of his planting 
stock. He does it by getting a count of the rows planted, as de- 
scribed elsewhere. 
Table 6 presents a resume of the planting records of the new garden 
at Bellingham, Wash., for the years 1919 and 1920 for 39 varieties of 
tulips. It will be seen readily that the computation of a record of 
yield from a planting of tulips is a complicated affair. It is therefore 
advisable to present quite a complete record in order that the reader 
himself may be able to weigh the factors. 
In studying Table 6 it is necessary to compare not only the totals 
of bulbs planted but also the relation of the sizes. To a degree this 
is expressed in the weights. To arrive at the complete performance 
of a variety the turn-off in 1920 and the discard given in the foot- 
notes, of course, must also be considered. 
In the comparison is given, first, the name of the variety and its 
class, then five columns headed by figures showing the number of 
bulbs planted to the row, which are followed by a column for the total 
of bulbs planted, and finally the weight of the bulbs planted in 1919. 
The same method of presentation is followed for 1920. 
