With two exceptions, there are no other arcs which are sufficiently complete to allow us to ascertain their original measurements. These exceptions are the arc in the little temple at G, and that from the doorway to A. In the former case, the length of the arc is fixed by the two doorways; and as one of these is placed north of the centre in order to permit of observation along the meridian line, and the other is made to serve the same purpose for the line GW, it is obvious why the length of this arc was not determined in the same way. In the latter case, as one end of the arc is at a northern doorway, and as we are not quite certain of the length of the radius of the arc itself, we have not attempted to determine the length of its chord. It is much to be desired that more of the plan of the original temple should be recovered, and this can only be done by careful excavation conducted by some one of experience in the art; for an inexperienced or careless workman could easily and unwittingly remove any of the remaining mortarless foundations without ever discovering that he had done so. APPENDIX D. The following notes have been kindly supplied by the Secretary of the British South Africa Company:— PROGRESS IN MASHONALAND SUMMARISED FROM NOVEMBER 1891 TO MAY 1893. HEALTH. The rainy season of 1891 to 1892 found the settlers in Mashonaland well housed and with an abundance of provisions; in consequence, a wonderful improvement was manifested in the health of the community, proving that the insufficiency of food and shelter, necessarily associated with the initial occupation of a wild country so many hundreds of miles from a base of supply, was mainly responsible for the sickness of the rainy season of 1890–1891. The Senior Medical Officer of the British South Africa Company reported early in 1892 that not a single case of fever had arisen among the inhabitants of Salisbury during the worst part of the wet season; in every case the patient had contracted his fever elsewhere, and there had been no deaths at all from climatic causes in Salisbury or its district. He adds: ‘Good food, good clothing, shelter from inclement weather and the sun, an abundant supply of medicines and invalid necessaries and a milder season have wrought an enormous improvement in the general health of the people, and Mashonaland of 1892 is not recognisable as Mashonaland of 1891.’ The general health has been equally good in the rainy season of 1892–3, and the experience of the last two years has shown that perfect health may be enjoyed by anyone who will avoid undue exposure and will observe a few simple precautions. TOWNSHIPS Progress in the townships of Salisbury, Victoria, and Umtali has been rapid.