A CLASSIFICATION OF ALL ITS BRANCHES, AND ILLUSTRATING THEIR
HISTORY, RELATIONS, USES, AND OBJECTS;

WITH A

Synopsis of their Leading Facts and Principles;

AND

A Select Catalogue of Books on all Subjects,

SUITABLE FOR A CABINET LIBRARY:

THE WHOLE DESIGNED AS A

GUIDE TO STUDY FOR ADVANCED STUDENTS, IN COLLEGES, ACADEMIES, AND
SCHOOLS; AND AS A POPULAR DIRECTORY IN LITERATURE,
SCIENCE, AND THE ARTS.

LATE PROFESSOR OF NATURAL PHILOSOPHY AND CHEMISTRY, IN THE UNIVERSITY OF
PENNSYLVANIA, AND MEM. AM. PHIL. SOCIETY.

THIRD EDITION.

PHILADELPHIA:

HOGAN & THOMPSON,

30 NORTH FOURTH STREET.