geo s perry (7 risultati)

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Condizione: Fair. Acceptable condition. Hinges cracked. Front endpage and title page detached. Owner's name on endpage. Slightly dampstained. Reading copy only. (Hymns, songbooks).

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condizione: New. Print on Demand. This book is a comprehensive guide to the trees and shrubs of Pennsylvania, compiled over a period of twenty years of observation and study. The author provides detailed descriptions of each species, including their botanical characteristics, habitat preferences, and practical uses. The book's key features include a user-friendly key to identify genera, a glossary of technical terms, and numerous illustrations from the photographic collection of the Pennsylvania Forest Research Institute. It also emphasizes the importance of understanding and appreciating the natural world, while advocating for responsible stewardship of forests. Beyond simply listing species, the book delves into the ecological significance of trees and shrubs, their role in the landscape, and their contribution to the overall health of the environment. The author's insights offer a deeper appreciation for the vital role of trees and shrubs in Pennsylvania's ecosystem. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Cloth. Condizione: Very Good. First Edition. First Edition. 11 x 8 1/2 inches. Faded blue cloth binding. This is what appears to be a very early set of class notes for a course on Machine Design in 1922. Leaves printed recto only, mostly mechanically reproduced (mimeograph?). Illustrations are blueprint figures tipped in or as separate leaves and illustrate concepts, machines and/or parts. Underlining and occasional notes throughout. Illustrations, as noted below, can be tipped in on a page of text, or as a separate leaf. Chapters include: I - Methods of Machine Design, 5 leaves II - Stresses and Strains in Machines, 16 leaves + 3 illustrations (2 full page) III - Selection of Materials for Machine Design, 47 leaves + 11 illustrations + tables IV - not present V - Fastenings - Bolts and Screws, 42 leaves + 24 illustrations VI - Fastenings - Cotters and Pinned Joints, 19 leaves + 15 illustrations VII - Columns and Struts - 15 leaves + 11 illustrations + chart laid in VIII - Beams and Cantilevers - 24 leaves + 23 illustrations IX - Shafting - 39 leaves + 17 illustrations X - Belt and Rope Driving - 11 leaves + 7 illustrations XI - Pulleys - 16 leaves + 8 illustrations There are blank pages bound in at the rear, presumably for notes. Cloth. "George Bartholomew Haven, 1871 1953, S.B. 1894, Massachusetts Institute of Technology, began teaching in the Department of Mechanical Engineering at MIT after graduation. He became an instructor in 1896, assistant professor in 1905, associate professor in 1910, and professor of machine design in 1914. He was professor of advanced machine design and head of textile research from 1929 until his retirement in 1936 as professor emeritus. He was the author of numerous articles and books on textile research and served as a consultant to textile machinery firms." (MIT Libraries Item MC-0459) The spine is marked S. S. Perry, no doubt the student who took the course from Haven. When catalogued, OCLC noted only earlier examples at MIT, dated 1914 and 1920 and none with this date. It is not uncommon with these early attempts at textbooks to have space "reserved" [as in chapter IV] for future subjects as the teacher evolves the coursework.