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Scientific American, Vol. 50, No. 15 (April 1884) (1884)

leaf 9

An illustration from Scientific American, Vol. 50, No. 15 (April 1884), 1884, leaf 9
g illustration represents a crutch recent- Ponceau and Bordeaux, and acid dyes of the nature of the ly patented by Mr. W. H. D. Ludlow, of La Porte City, RIPPING ATTACHMENT FOR SCISSORS. phenols, phthaleine, and the amine colors tliathaveacquired Iowa. Through a hole hi the lower end of the crutch… … the water to be examined, and into the other a solution of of Manokin, has been patented by Francis S. Loockernian, drive It back \intil the handhold carbonate of lime in carbonic acid water, known to be lead Md. is reversed. In the crutch made >V\1 free, and approximatively of the same hardness as…

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