The American Geographical Society has a long history of involvement in exploration and mapping of the Arctic. These efforts culminated in the 1975 production of a detailed and highly acclaimed map of the Arctic at the scale of 1:5,000,000. This paper provides comprehensive information about the...
Calendar of Geographical Exploration April 19, 1827.-The Niger and Timbuktu M. Caillie, a French government official of Sierra Leone, left Kakundy, on the Nunez river, midway between Sierra Leone.and the Gambia. With a small caravan of Mandingoes he crossed the region through which ran the...
We were again re-routed to traffic for a short time over the Barrington River and instead of going all the way to East Providence, we decided to retrace our route back to Bristol with some time to explore some of the area we had biked past. Upon reaching the Audubon Center, we parked...
June Si 1594.—Barents in the Arctic This is a preview of subscription content, access via your institution Access options Subscription info for Chinese customers We have a dedicated website for our Chinese customers. Please go to naturechina.com to subscribe to this journal. Go to naturechina...
Over the century and a half of its existence, the AGS has been especially interested in three regions: the Arctic, the Antarctic, and Latin America. A signature characteristic of the AGS-sponsored exploration was the requirement that its expeditions produce tangible scientific results.Reviewed, ...
The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what might be called “the heroic age of Antarctic exploration”. By their tremendous heroism, men such as Shakleton, Scott, and Amundsen caused a new continent to emerge from...
Implementation of this policy commitment would also render unnecessary continued substantial expenditure on fossil fuel exploration, because any new discoveries could not lead to increased aggregate production. 展开 关键词: n77800* --reactors--space, mobile, propulsion, transportation & package reactors ...
Sequence analysis of the ribosomal RNA operon, particularly the internal transcribed spacer (ITS) region, provides a powerful tool for identification of mycorrhizal fungi. The sequence data deposited in the International Nucleotide Sequence Databases (IN
“signs of the covert infra human animal” are most visible in the bear. The polar bear, endemic and iconic mammal of the Arctic for those living in more southern latitudes, is, as Barry Lopez has written inArctic Dreams, “a creature of arctic edges: [s]he hunts the ice margins, the...
In these gaps, sturgeon were totally absent from inland waters, or occasionally migrants entered rivers, sometimes traveling far above the tidal limit, for exploration and feeding activities. Because of diverse anthropogenic regional pressures, the sturgeon’s range decreased drastically, and population ...