DI oo Bae 
CAUTION: Do not let. Sates nétat or 
other matter touch water: which is being 
tested, or inside of iia used. $3 ey 
affect the test. © “ps 
i; wash, rinse ‘and: érety a ‘clean, 
white tea cup three times ith 
_ the same water as is to be 
tested. 
2. prop into ‘the empty, washed tea 
cup i of the small pieces of 
paper from the attached envelope. 
Pour or drop 10 to 20 drops or 
about 4 teaspoonful of water to 
. be tested.on the paper in the 
~ Cup. tet stand 10 minutes, 
then note color of the water, 
not the paper, and see list, on 
page 2, of the plants suitable. ei 
for grewing in it. 
3 observe other special conditions. : 
ps sour for the various plants. 
. 
