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A conference paper about the production of gudgeon and other fish in the River Thames in England is presented. It estimates the growth rates, fecundity and production of gudgeon. In this study, the production between sampling and spawning and the first fingerling stage was estimated by the Ricker method, and maximal and minimal limits were also given.

The article reports on a comparative study of ecological observations made during the years 1921-1924 and 1936 on alluvial meadows, such as grazed and mown meadows. These meadows border the River Thames close to Oxford. Historical evidence shows that these alluvial meadows are unique in England. The article also provides comparisons of floristic lists from the two types of meadows and lists of species common and exclusive to the two. A prominent factor for most of the differences observed is the presence or absence of grazing.