Principles of Chemistry Author:Joel H. Hildebrand, Richard E. Powell Now in a seventh edition, this highly praised text maintains its direct, vigorous treatment of the principles of chemistry. It avoids descriptive chapters (thus giving the instructor room to intersperse such material at his discretion) and can be used with any pattern of lecture and laboratory work. — The authors continue the sequence introduced... more » in the first edition-first they discuss the kinds of matter and elements, then atomic and molecular weights, and, finally, structure. It is their conviction that this "genetic" order, which generally follows the development of chemistry, best suits the needs of the beginning student.« less