In carrying out this research I have been assisted in very various ways by a number of friends, all of whom it would be impossible to mention individually, but I should with reason incur the charge of ingratitude did I not put in the front rank Mr. Kato, President, and Mr. Hattori, Vice-President, of the University, to whom indeed the very existence of this memoir is owing. My thanks are also due to Mr. Jihei Kamayama and to Mr. Tobei Isuka, of Yushima, Tokyo, Proprietors of the koji and sake works, respectively; to Mr. Mansuke Izumi, of Nishinomiya, and to Mr. Shinyemon Konishi, of Itami, to all of whom I owe much valuable information.
To M. Pasteur I am indebted for permission to make use of plates 17, 18, and 19, taken from his "Etudes sur le Vin". Without the cordial cooperation of my assistant, Mr. Nakazawa, my task would have been much more difficult, and thus publicly I desire to acknowledge my indebtedness to him. Plate 16 I owe to Professor Ewing, and Professor Cooper has with the greatest kindness looked over the proofs for me.
The substance of Part I of this memoir was communicated to the Royal Society of London in a Paper read on 10th March 1881.
The printing of the memoir was carried out at the Government Printing Office (Insetsu Kiyoku), and the plates were engraved by the Gengendo Engraving Company.
The accompanying French (metric) and English equivalents of the Japanese weights and measures used in the text will prove of assistance to those who are not familiar with them.
R.W.A.
University of Tokyo, Japan
May 1881