10 
HOUSEHOLD BACTERIOLOGY . 
difficult to prepare, the gelatine is more favorable for 
the amateur’s use.* 
In our garden we want only certain kinds of plants,, 
and we want to know just where they come from, we, 
Planting 
the Garden 
therefore, bake the dish and boil the jelly until sure 
that nothing in either is alive. 
When ready to plant the garden, put the bottle of 
jellied beef juice into a dish of cold water. Heat this 
until the jelly is melted and then cool slightly. 
*For the careful, accurate preparation of such soil, consult 
“Laboratory Work in Bacteriology,” Frederick G. Novy, or 
any other manual of laboratory practice in Bacteriology. 
A Petri dish may be obtained from the School for 30c 
and a bottle of agar ready for use for 24c (in stamps) sent 
postpaid. 
tThe “Story of Germ Life,” H. W. Conn; D. Appleton & 
Co., Publishers. 
