468 Report oF THE HorTICcULTURIST OF THE 
diagram. Plate I shows the interior of the lettuce-house as ar- 
ranged for Crops II and III. 
NortTH BENCH. 
Soil 5. Soil 4. | Soil 6. Soil 5. 
Plat 1 ee 4 5 6 7 8 9 10 
Soil 4. | Soil 5. | Soil 6. Soil 4. | Soil 6. 
Plat 20 19 18 17 16 15 14 13 12 i1 
SouTH BENCH. 
For Crop I each seed was weighed and only seeds of a uniform 
weight, 1.5 milligrams, were planted. This plan was afterward 
abandoned because it did not insure as uniform seedlings as were 
desired for the test.” For Crop II the seeds were sown in each 
plat in furrows exactly one-half inch deep, no attempt being made 
to select seeds of uniform weight. They were then covered with 
2 The time required with Crop I for the germination of the seeds is shown 
for each plat in the following table, together with the measurements of the 
plants fifty-four days after seed-planting and the percentage of seeds which 
germinated. It should be compared with Table B, page 470. 
TABLE A. GERMINATION AND GROWTH OF LETTUCE SEEDS. 
(CROP I.) 
Spread of plants 

Time required for ibe 
“cag 54 days. after seed #083 
Soil. Plat. germination. planting. oa as 
= aeteereanates In, — FO eS z 
Average. Variation. Average, Variation. a pee: 
Days Days. Ins Ins 
1 08M o: DAES es rus ceGiseicm ng 1 11.67 8 to 18 5.15 3 to 8 - 90 
Sand 1 part.......«. terre ee 8.05 7 to 13 7.4 6 to 9.%5 100 
Manure. 1 part, .scsaerenes Ges 9:97 6 to 20 7.45 4.5 to9 97 
2. Same weight of loam and 2 9.53 7 to 14 7.25 5 to 9.50 95 
manure as Soil 1 with 8 9.11 7 to 14 7.38 2.75 to 9 95 a 
twice as much sand ...... 17 9.13 7 to 40 7.69 2 to 9.50 94 4 
3. Same weight of loam and 3 10.17 6 to 33 7.53 2 to 9.7% 95 
manure as Soil 1 with 9 8 63 6 to 14 % 37 3.75 to 9.75 85 
three times asmuch sand. 15 7.67 6 to lil 7.65 5 tore 8? 


A study of the later records of those plants which germinated most slowly 
shows that, as a rule, they did not equal plants from earlier germinations 
either in size or in earliness of reaching marketable maturity. : 
TPS nh eee So ae ee | 
