Letter, from [Frederick Stephanus Joubert?] Watermeyer to Sir John Herschel, dated at 3 Orange St. [Cape of Good Hope] Autograph letter signed by sender. J. Watermeyer's 'tabular scheme,' employing Price's method, is only a first attempt and yields life probabilities too low for Cape Colony, where births exceed deaths. Will submit recent data next week. 31 October 1834