According to my files from many years ago, my first contact with Denis Lynn dates back to February 1974, when he sent me a letter with questions related to extrusomes in ciliates, the topic of my doctoral thesis. Denis was in the completion phase of his PhD thesis (Figure 1) and I had just started my first position as Assistant Professor at the University of Heidelberg. Later, Denis and I met from time to time on the occasion of international congresses of protozoology. Additionally, over the years we developed a lively correspondence about ciliatological problems. When in the early 1980s I began to think about editing a monograph with the title Ciliates: Cells as Organisms, the first colleague whom I approached with a request to compose a chapter on ciliate systematics was Denis. Without any hesitation, he agreed to be one of the 23 authors of this treatise. The result was a comprehensive, sophisticated, and up-to-date review on this topic (Lynn, 1996), of a high professional standard, as I had known from his publications that it would be. In 1986, when I took over the editorship of Protistologica, renamed by me to the European Journal of Protistology, I asked Denis to join the editorial board as one of four Associate Editors. He accepted my invitation readily and served in this position until 1991. During this period, we had an intensive editorial correspondence. His first extended visit to Germany (to my knowledge) was in the summer of 1993, when he spent a sabbatical at the University of T€ubingen, working in Prof. Dieter Ammermann’s lab, collaborating particularly with Dr. Martin Schlegel. During this time, he attended the IX International Congress of Protozoology organized by the German Society of Protozoology, held in Berlin. A couple of months later, he visited Berlin, together with his parents. All three Lynns stayed in our house for several days. A pictorial entry in our guestbook reminds us of this very enjoyable time together (Figure 2). Figure 1. Denis towards the end of his doctorate.

中文翻译：

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丹尼斯林恩和他与德国的关系

根据我多年前的档案，我与 Denis Lynn 的第一次接触可以追溯到 1974 年 2 月，当时他给我发了一封信，其中包含有关纤毛虫挤出体的问题，这是我博士论文的主题。Denis 正在完成他的博士论文（图 1），而我刚刚开始我在海德堡大学担任助理教授的第一个职位。后来，丹尼斯和我不时在国际原生动物学大会上见面。此外，多年来，我们就纤毛学问题进行了热烈的通信。1980 年代初，我开始考虑编辑一本名为《纤毛虫：作为生物体的细胞》的专着时，我联系的第一个同事是丹尼斯，他要求撰写有关纤毛虫系统学的一章。毫不犹豫，他同意成为该论文的 23 位作者之一。结果是对这个主题（Lynn，1996 年）的全面、复杂和最新的评论，具有很高的专业标准，正如我从他的出版物中知道的那样。1986 年，当我接手 Protistologica 的编辑工作时，我将其更名为欧洲原生生物学杂志，我邀请丹尼斯作为四位副主编之一加入编辑委员会。他欣然接受了我的邀请，一直担任这个职位直到 1991 年。在此期间，我们有大量的编辑通信。他第一次访问德国（据我所知）是在 1993 年夏天，当时他在图宾根大学休假，在迪特尔·阿默曼教授的实验室工作，特别是与马丁·施莱格尔博士合作。在这段时间，他参加了由德国原生动物学会在柏林举办的第九届国际原生动物学大会。几个月后，他与父母一起访问了柏林。林恩三个人都在我们家住了几天。我们留言簿中的图片条目让我们想起了这段非常愉快的时光（图 2）。图 1. 丹尼斯博士即将毕业。