LIST OF ILLUSTRATIONS 
Lettuce plants in flats Bea vceree ete a eee eet eshte 
Utilizing shelf space in an overcrowded house. Unfair 
to the plants in the beds underneath__--------------- 
Flat with wire mesh bottom_----------------------__-- 
Cucumber plants growing in pots and in an adjacent bed 
Potted cucumber plants in a bed of gladioli____________ 
Chamber used for the steam sterilization of soil in flats. 
(Note that the flats are on carts) ------------_------ 
Spotting board used in transplanting lettuce-___--______ 
A convenient form of nozzle for greenhouse watering__ 
Tile laid in bed for sub-irrigation 
Overhead irrigation in a lettuce house___-_-----__-_--- 
A convenient homemade cart for handling two ber at 
a time ------ 
A handy cart for greenhouse use feild, 
Harvesting a crop of cttcumbers in a large range____--_ 
Corner of packing room in a well-managed establish- 
MeCHE Soto le sees elk soos ee eee eke oe es, 
A load of cucumbers en route to shipping station_--____ 
A large root of asparagus suitable for forcing purposes 
Graph showing returns from asparagus roots of differ- 
ent sizes 
Rhubarb stalks grown from roots planted in coal ashes 
Rhubarb growing in coal ashes in an ordinary cellar____ 
Rhubarb growing in a coldframe__--_____- 
An inexpensive rhubarb house near Boston. Sash are 
placed on the frame whenever it is desired to force 
the crop Paes 
A simple house in Maryland for the - forcing of rhubarb 
A large rhubarb root suitable for forcing-------------- 
Rhubarb forced in almost total darkness. Note small 
leaf blades __-- 
Head lettuce in the Boston district--------___._---_---- 
Grand Rapids lettuce in a large Middle West range____ 
Cos lettuce on the right; head lettuce on the left______ 
Pot experiment at the Pennsylvania State College, show- 
ing the value of lime for lettuce aus 
Transplanting board used for setting lettuce. Note 
large pegs 
Plants of same age. One on left dwarfed ‘because the 
tap root was bent when the plant was set in the bed_- 
The lettuce in this large range is cultivated with a 5- 
pronged weeder attached to a long handle----------- 
Pot-grown plant ready to set in the bed_------_.-__---- 
Pot-grown plant ready for market---.----------------- 
Grand Rapids lettuce 
A basket of lettuce ready for market-_-------------_-- 
