Ammonia | Comments |
---|---|
AMMONIA: In Atmosphere Presence in the jungle, also in 19th C. orchid culture; conjectures and possibilities; refer to OR73-333; OR75-141 | 0 |
AMMONIA: Vapour as Fertilizer 19th. C. methods; pieces of carbonate of ammonia placed near heating pipes; soot and lime mixed dry, or, ammonia in solution, twice a week, OR73-333 | 0 |