D. M. FERRY & CO., DETROIT, MICH. 
7 
GREENHOUSES AT OUR EXPERIMENTAL GARDENS. 
Over 50,000 Viability Tests are made in our Greenhouses each year. 
PORTION OF 1914 CABBAGE TRIAL. 
In our Cabbage Trials uniformity in habit of growth, evenness of maturing and the shape and quality 
of the head are all carefully observed. 
