REPORT OF THE HORTICULTURIST. 
I. A COMPARISON OF SOIL MIXTURES 
FOR FORCING" HEAD LETTUCE* 

S. A. Bracu. 

SUMMARY. 
Tests of different soil mixtures for forcing head lettuce have 
been continued for three winters. A medium clay loam with 
various proportions of stable manure and sand, pure sand with 
manure, and a very light sandy loam with manure have been tried. 
The clay loam with a heavy application of stable manure gave 
the best results. 
The light sandy loam with heavy application of stable manure 
was least satisfactory. 
On pure sand with a good dren of stable manure the lettuce 
made a vigorous growth, but the heads were less firm and the 
texture more delicate than with the lettuce which was Son on the 
clay loam. 
INTRODUCTION. 
Some investigations were begun at this Station in the autumn 
of 1895 for the purpose of observing the influence of different 
soil mixtures on the earliness, texture, shape and size of lettuce 
erown under glass. The tests have been continued for three 
winters and four crops have been grown. 

* Reprint from Bulletin No, 146, 
