Bullock, " Competitive Examinations in China " (Nineteenth Century, July 1894); and Etienne Zi, Pratique des examens litteraires en Chine (Shanghai, 1894).
Todhunter, Conflict of Studies (1873) William Whewell, Of a Liberal Education (London, 1845); Christopher Wordsworth, Scholae academicae (Cambridge, 1877); Etienne Zi (or Siu or Seu), Pratique des examens litteraires en Chine (Shanghai, 1894).
Sugar Weighing M the frame of the ma chine, and transmit the weight of the hopper by means of an intermediate lever and a vertical rod to the indicator lever.
On the left the port bow showing the single chine.
Possibly the reason there are so few is that it is round chine and so more difficult to build - who knows!