Rivers of North America

The Need for Ichthyological Surveys of the Major Rivers of Western North America.

Exploration for " Big Bones " at Lower Blue Licks Spring, Kentucky: Willard Rouse Jillson 555 The Immunizing Effect in the Action of TrypanocidalAgents: Clifford S. Leonard .................................... 556 Thiophene-free Benzene: B.J.Graul and J. V. Karabinos .................................... 557 Pyridylmereuric Acetate as a Prophylactic in Fisheries Management: Willis M. Van Horn an...

Distribution patterns of mercury in lakes and rivers of northeastern North America.

We assembled 831 data points for total mercury (Hg(t)) and 277 overlapping points for methyl mercury (CH3Hg+) in surface waters from Massachussetts, USA to the Island of Newfoundland, Canada from State, Provincial, and Federal government databases. These geographically indexed values were used to determine: (a) if large-scale spatial distribution patterns existed and (b) whether there were sign...

Late Pleistocene and early Holocene rivers and wetlands in the Bonneville basin of western North America

Field investigations at Dugway Proving Ground in western Utah have produced new data on the chronology and human occupation of late Pleistocene and early Holocene lakes, rivers, and wetlands in the Lake Bonneville basin. We have classified paleo-river channels of these ages as “gravel channels” and “sand channels.” Gravel channels are straight to curved, digitate, and have abrupt bulbous ends. ...

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