Donald Mackay – författare

Multimedia Environmental Models: The Fugacity Approach, Third Edition, takes a broad approach of viewing chemical behavior in the total biosphere of connected biotic and abiotic compartments. Chemicals are subject to the laws of "mass balance," a constraint that provides the opportunity to establish quantitative expressions for chemical fate that are central to chemical management and regulatory legislation.

This book employs both the conventional concentration-based procedures and those based on application of the more elegant and powerful concept of fugacity to characterize equilibrium, steady-state distribution, and time-dependent transport between environmental phases such as air, water, and soil. Organic chemicals are emphasized because they are more easily generalized when assessing environmental behavior.

Features

Multimedia Environmental Models: The Fugacity Approach, Third Edition, takes a broad approach of viewing chemical behavior in the total biosphere of connected biotic and abiotic compartments. Chemicals are subject to the laws of "mass balance," a constraint that provides the opportunity to establish quantitative expressions for chemical fate that are central to chemical management and regulatory legislation.

This book employs both the conventional concentration-based procedures and those based on application of the more elegant and powerful concept of fugacity to characterize equilibrium, steady-state distribution, and time-dependent transport between environmental phases such as air, water, and soil. Organic chemicals are emphasized because they are more easily generalized when assessing environmental behavior.

Features

Short-listed for the 1978 Governor General’s Award for Non-Fiction The 19th century spawned a unique breed of men who took pride in their woodsmen skills and rough codes of conduct. They called themselves lumberers, shantymen, timber beasts, les bucherons – and, more recently, lumberjacks, working in the vast forests of eastern Canada and British Columbia. Across the country, farm boys would go to the woods, lumbering being the only winter work available. Immigrants – Swedes and Finns more often than not – resumed the trades they had learned so well in the forests of northern Europe. They broke the cold, hard monotony of camp life with songs, tall tales and card games. Within these pages, author Donald MacKay allows us a glimpse into that moment in our heritage when men entered the virgin forest to carve out an industry from the seemingly endless array of pine, spruce, maple and balsam fir found there.

This is the story of the Highland Scots who sailed to Pictou, Nova Scotia, in 1773 aboard the brig Hector. These intrepid emigrants came for many reasons: the famine of the previous spring, pressures of population growth, intolerable rent increases, trouble with the law, the hunger of landless men to own land of their own. Upon arrival at Pictou, after an appalling storm-tossed crossing, they found they had been deceived.

The promised prime farming land turned out to be virgin forest. Only the kindness of the Mi’kmaq and the few New Englanders already settled there enabled them to survive until they learned how to exploit the forests and clear land. But survive they did, and their prosperity encouraged shiploads of emigrants, many fellow clansmen, to join them, making northeastern Nova Scotia a true New Scotland.