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6

spared from the daily routine work. The work is slow, involving, as it does, not only the labor of handling, consulting the records, labelling, and card-cataloguing, but also a good deal of identifying.

Some time has been spent in preparations for a herpetological display at the coming World's Columbian Fair in Chicago, 1893. Thanks to Mr. Benedicts experiments, a plastic and pliable substitute for plaster was obtained for making the casts of reptiles and batrachians.

By all odds the most valuable and interesting collection not only