Time services at the Cape and Sutherland Observatories.

This document provides a historical overview of the time services at the Cape Observatory and Sutherland Observatory in South Africa. It mentions the use of various timekeeping devices, such as chronographs and quartz crystal oscillators, as well as the transmission of time signals to radio stations and other institutions. The document also discusses the transition to modern timekeeping systems and the role of the observatories in maintaining accurate time standards. It concludes with a brief mention of time services at other observatories in South Africa. The given text includes references to several books and reports related to astronomy in South Africa. These sources provide information on topics such as the activities of the Royal Observatory at the Cape of Good Hope, the Johannesburg Observatory, and the work of astronomers in these locations. The text does not provide any specific details or content from these sources, but rather serves as a list of references for further research. [Extracted from the article]