Alphabetized and indexed, this book is a user-friendly source to find quickly the clockmakers, casemakers, inventors, and merchandisers who worked in central and western New York State in the eighteenth, nineteenth, and twentieth centuries. The authors include more than 150 makers or merchandisers along with historical information about each entry. Historically, New York clockmaking was considered an offshoot of the Connecticut clock industry. An Empire in Time documents the number and the breadth of activities of makers and merchandisers in upstate New York. These makers independently invented the first commercial perpetual calendar clocks, the first time recording clocks, unique tallcase and tower clocks, and many early electric and battery clocks, to name a few. - National Association of Watch and Clock Collectors

An Empire in Time: Clocks & Clock Makers of Upstate New York

Science & Math

Oechsle, G. Russell

Boyce, Helen

Technology

Natl Assn of Watch & Clock

The Mines of the Upper Harz from 1514-1589 ...

History

Nabu Press

The invasive Harlequin ladybird is an eye-catching and beautiful species, but it can be very difficult to identify, with huge variation in colouration and pattern. This comprehensive photographic field guide is the first complete guide to identifying&nbsp;Harlequin ladybirds found in Britain and Ireland. &nbsp;It also covers all&nbsp;the other 25 conspicuous ladybird species that occur. <ul> <li>Detailed, informative and beautifully illustrated with more than 350 remarkable colour photographs including ladybird developmental time sequences and numerous images of each ladybird species</li> <li>Ground-breaking quick key for Harlequin identification</li> <li>Includes a photographic guide to the larvae of all 26 species - the first of its kind</li> <li>Easy to follow comprehensive descriptions and explanations of ladybird lifecycles and habits</li> </ul> This clear, user-friendly field guide is ideal for anyone interested in learning how to identify a Harlequin ladybird, from beginners to more experienced entomologists, students and professionals. This book is ideal for learning to recognise and understand this charismatic and significant beetle.

A Field Guide to Harlequins and Other Common Ladybirds of Britain and Ireland

Biological Sciences

Pelagic Publishing

See the best price to sell, buy, or rent books by Boyce, Helen. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by Boyce, Helen