OR, A Systematic Survey OF HUMAN KNOWLEDGE: PROPOSING A CLASSIFICATION OF ALL ITS BRANCHES, AND ILLUSTRATING THEIR HISTORY, RELATIONS, USES, AND OBJECTS; WITH A SYNOPSIS OF THEIR LEADING FACTS AND PRINCIPLES; THE WHOLE DESIGNED AS A GUIDE TO STUDY FOR ADVANCED STUDENTS, IN COLLEGES, ACADEMIES, AND SCHOOLS; AND as a popular DIRECTORY In literature, BY REV. ROSWELL PARK, A. M. LATE PROFESSOR OF NATURAL PHILOSOPHY AND CHEMISTRY IN THE UNIVERSITY OF PENNSYLVANIA, AND MEM. AM. PHIL. SOCIETY. FOURTH EDITION, CORRECTED AND BROUGHT DOWN TO THE PRESENT DATE. PHILADELPHIA: ALEXANDER MCCAY. 4666 A ENTERED according to Act of Congress, in the year 1841, by in the Office of the Clerk of the District Court of the Eastern District of Pennsylvania. TO THE REV. SAMUEL B. WYLIE, D. D. VICE PROVOST AND PROFESSOR OF LANGUAGES, IN THE UNIVERSITY OF PENNSYLVANIA, WHOSE LIFE HAS BEEN DEVOTED TO THE ADVANCEMENT OF LEARNING AND THE INTERESTS OF HUMANITY, |