The new art of memory, founded upon the principles taught by M. Gregor von Feinaigle / to which are added some account of the principal systems of artificial memory. From the earliest period to the present time ; illustrated by engravings.

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The new art of memory, founded upon the principles taught by M. Gregor von Feinaigle / to which are added some account of the principal systems of artificial memory. From the earliest period to the present time ; illustrated by engravings. Public Domain Mark. Source: Wellcome Collection.