963 resultados para Steevens, George, 1736-1800.
Resumo:
The samples were collected from Lake Edward at Rwenshama, Kisenyi and Katwe, and from Lake George at Mahyoro, Kashaka and Kasenyi and in Kazinga Channel at Katunguru. The organisms identified from the water samples obtained irrespective of station or depth were mainly the phytoplankton (diatoms, blue-green algae and green algae). Of the phytoplankton, blue green-algae were the most abundant both in quantity and number of species especially in L. George. In order of importance were Microcystis spp, Planktolyngbya spp and Anabaenopsis spp were the dominant blue greens. Diatoms and green algae were present but less abundant. The estimated proportions of different types of phytoplankton identified in O. niloticus stomach contents indicate that bluegreen algae were the most abundant followed by the diatoms and green algae.
Resumo:
In Lake George, the abundance of haplochromines in inshore regions during the day and at night differs significantly. Futhermore, while by day there are more haplochromines in the lower than the upper layers, at night these fishes appear to be uniformly distributed throught the water column. Regions of the lake near river mouths had fewer haplochromines during the wet than the dry season, while the reverse was true of regions distant form the river mouths. Possible causes of these movements are discussed.
Resumo:
基于现代气象资料所建立的西安、汉中地区冬季降雪天数与年冬季平均气温之间的相关关系,根据清代档案所记载的西安与汉中地区冬季降雪日数,恢复了西安与汉中地区1736~1910年的年冬季平均气温,重建了1736~1999年西安与汉中地区年冬季平均气温序列。序列分析表明,这两个地区年冬季平均气温变化趋势一致:18世纪和20世纪为暖期,19世纪为冷期,且20世纪的增暖趋势明显。与利用树轮重建的镇安初春(3~4月)温度序列对比分析表明:西安、汉中地区冬季平均气温与镇安初春温度的低频变化趋势基本一致,但镇安较西安与汉中有
Resumo:
利用清代雨雪分寸资料,复原了1736~1911年长江中下游地区的梅雨入出日期、雨期长度,重建了1736年以来长江中下游地区梅雨雨量变化序列,分析了梅雨的变化特征;并根据梅雨期长度与东亚夏季风指数之间的关系,分析了1736年以来东亚夏季风的强弱及与之对应的雨带位置阶段性变化特征.结果表明:长江中下游地区入、出梅日期及雨期长度均存在明显的年-年代际变化,雨期长度除具有2,7~8,20~30及40a的年际与年代际周期外,还具有百年波动的信号.1736年以来,雨期长短、中国东部季风雨带位置移动与东亚夏季风强弱变化
Resumo:
http://www.archive.org/details/anenglishwomanst00hawkuoft
Resumo:
http://www.archive.org/details/metlakahtltruena00davirich
Resumo:
http://www.archive.org/details/cannibalmission00pattuoft
Resumo:
Boston University Theology Library
Resumo:
Postal card to George Whitaker. Mailed from Ocean Grove, NJ. Dated June 27, 1881.