引言在1954年6月末和7月初,北京大学生物学系二年级的同学进行了两周半的脊椎动物学教学实习。实习内容包括一个项目名为“专题研究”。先由教研室拟定一些题目,让同学每一小组(10—12人)各挑选一题。然后在其他指定工作外(如户外观察,室内学习操作技术和到生产与研究部门去参观和听报告等),进行集体的独立的观察和研究。题目的范围只限于脊椎动物;工作的性质有的是室内实验,有的是野外观察,还有的是向技术人员和人民大众进行访问与调查。其中有一小组挑选了蝙蝠自然历史的观察。这一组的成员 Introduction In late June 1954 and early July 1955, two-and-a-half weeks of vertebrate teaching internships were held in the second year of biology in Peking University. The internship includes a project called “Project Study”. First by the teaching and research department to develop some topics, so that each group of students (10-12 people) each pick a question. Then conduct collective independent observation and research outside of other designated work (such as outdoor observation, in-house learning and operation skills and visits to production and research departments, listening to reports, etc.). The scope of the topic is limited to vertebrates; the nature of the work is laboratory experiments, some field observation, and others are to visit and investigate the technical staff and the general public. A small group of them selected observations of the bat’s natural history. Members of this group