SA;Science Abstracts

Yiqun Zhang Hua (Tsinghua University Library,Beijing 100084,China) Abstract The present article briefly introduces the subject coverage and the record format of Science Abstracts.

介绍了英国《科学文摘》选收论文的主题范围，以及文献报道的格式。

Verification of Several Questions on Which Oak(Quercus) Belonged to Family,Genus and Species in the Taxonomic Category of Botany;

关于柞树在植物分类阶元“科”、“种”、“属”的几个问题考证

Relationship Between Species and Family or Genus in Number of Aves in China;

物种与科属的数量关系——以中国鸟类为例

Analysis of the flora of the family of the seed plants in Kongtong Mountain of Gansu Province;

甘肃崆峒山种子植物区系科的分析

The comparison of vertebral column and appendicular skeleton for bagrid catfishes from Jialing River reveals that in the family Bagridae the compound vertebra is formed by the anterior 6 vertebrae.

对嘉陵江科鱼类脊柱及附肢骨骼的比较表明，复台椎骨由前６权脊椎骨愈合而成。

In the family Bagridae,the Weberian apparatus consists of the claustrum,the scaphium,the inter-calarium and the tripus.

科鱼类的韦伯氏器的形态与鲤科鱼类的不同，闩骨扁平或长针状，略呈孤形，舟骨“Ｖ”形，由匙状部、上行支、髁状突和舟骨沟构成；间插骨“Ｖ”或钧状，分为间插骨体、水平支、髁状突和上行支四部分；三角骨最发达，含前突、关节突和转换突等部分，韦伯氏器的形态表现出明显的属间差异，可以作为科属间分类的重要依据之一。

An analysis of the angiospermous families in Guangxi shows that the flora has a diverse geographical elements, with an overwhelming number of tropical and tropical-to-subtropical families accounting for 53 7%; cosmopolitan and subcosmopolitan, tropical-to-temperate,temperate and those endemic to Asia account for 19 4%,12 0%,9 7% and 5 1% of the total family number respectively.

对广西被子植物区系科的组成和地理成分进行了分析。