ests have to be applied. These must be accurate to possess any value. In many in- stances also the quality and composition of the mate- rials used have to be investigated. The laboratory we illustrate is the embodiment of such ideas. It includes, for constructive purposes, a selection of the… … (Continued on p. 290.) chemical laboratory, with all the concomitants. Inits four main rooms and in its offices and smaller apart- hi ill ments everything is contained that can aid theinventor in quickly bringing his ideas into concrete form and } | determining their value when so presented. The…
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