The Spanish Frontier in North America

Admixture in North America

The history of North America has been marked by the encounter of populations from different continents. The discovery of the New World began a period defined by human migrations at a much larger scale than in previous history. This movement of people, voluntary or forced, changed profoundly the human landscape. As populations came into contact, admixture followed in varying degrees depending on...

Medicine in North America

Travel in North America

Field Surgery on the North-West Frontier

Notwithstanding the numerous expeditions against the warlike tribes on the north-west and north-east frontiers of British India within recent years, there is a remarkable dearth, in medical literature, of information regarding the nature of tho diseases from which the troops suffered during thoso expeditions, and of the wounds inflicted upon them by the enemy. To meet this want in some small me...

Phytophthora ramorum in North America

Two apparently unlinked events marked the beginning of one of the most devastating forest diseases known to man in recent times: Sudden Oak Death (SOD). In the mid 1990s, while a novel species of Phytophthora was being isolated from mildly diseased Rhododendron and Viburnum plants in German and Belgian nurseries, the first reports of inexplicable death of tanoaks (Notholithocarpus densiflorus) ...