Sadly, since my background is minimal, the most I could get from this book was a superficial survey of the history of evolutionary biology. The book focuses on the parting of ways between Darwin and Galton/Haldane on evolution acting on individuals rather than populations; the historical debate between Mendelians and biometricians; a discussion of ''pure lines theory''; and population genetics as the synthesis between Mendelism and biometry. Approximately half of this book is biographical vignettes that begin with saying 'this guy from evolutionary biology graduated from Oxford or Cambridge...'. This emphasis on personalities is apparently by design, not accidental, because the book concludes by saying that personality conflicts figure largely on the timeline of evolutionary biology's development and discoveries, delaying correct results and conclusions, and that scientists sometimes accept things a priori due to preferences instead of secure scientific foundations. It is an interesting book with content probably not found elsewhere, but be prepared to have deep interest in the wrong road turns of biology at the driving hands of obscure Oxford dons, or you will be nodding off.