This is the 10th volume in a series which was initiated in 1977. Like previous volumes, it contains scientific peer reviewed reviews on topics dealing with orchids. These topics include: a history of orchid breeders in Singapore, a discussion of research on pollen effects on orchid flowers carried out a century ago by the German plant physiologist Hans Fitting in Bogor, Indonesia which led to the first suggestion that plants produce hormones, a consideration whether orchids are mentioned in the Bible, a review of food hairs in orchids, an outline of pollen dispersal units in orchids, a survey of orchids in art, a tracing of the history of Vanilla pollination, a chapter on viruses which attack orchids and an appendix which lists a very large number of orchid books. All the volumes in this series will appeal to those who are interested in orchids and plant scientists in general.