The author arrived in Bulawayo Southern Rhodesia in December 1954, and worked as an assistant to the pathologist in a private laboratory. A year later he was working peacefully as a government medical officer in a large district of Nyasaland. But the southern end of the Rift Valley was not only unstable physically but politically as well, and the Central African Federation of Rhodesia and Nyasaland was soon to become Malawi, Zambia and Zimbabwe. Zimbabwe was the last to arrive in 1980, and it was while that country was still Rhodesia in 1965 that the author was the medical superintendent of the hospital in Fort Victoria (Masvingo). In the hospital mortuary he discovered a foetal heart which revealed to him hitherto unknown secrets of the foetal circulation. In 1970 he opened his own medical practice in Salisbury (Harare), and worked as a G.P. until 2013 when his wife died and he returned to England. He produced his first book on the foetal circulation in Zimbabwe in 2011. He has since produced three other books on the same subject. The 5th edition is a much better version, with corrections of the errors in the first four after dissections of foetal lambs.