the construction of new machinery and repairs to the ma- scopes. It consists of a thin piece of glass, having attache They should be planted deeply, and the surface of the soil chinery on the premises. must be kept loose. In watering, wet the soil in the neigh- The process of making emery wheels is… … plied, etc. The first process is the mixing and drying, as ————————— eee a SIMPLE WATER LENS MICROSCOPE. the vessel or cover insert some burning tobacco, and let it re- already referred to; the second, the pressing. After the main for ten or fifteen minutes. This is a much better plan By aid of the…
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