8 AUTHOR'S FOREWORD. but it s#z// appears todo so. So, although my sensations may deceive me, nothing can alter the fact that what I say correctly describes “what appears to happen.” I am compelled to write even these tentative explanations in a somewhat definite manner, because, other- wise, there would be a tedious repetition of such phrases as “it appears to me,” “I felt as if,” etc., ete. Ninety-five per cent. of my statements are borne out by the letters produced as evidence. The few that are not mentioned are omitted probably for one or more of the following reasons— 1. The haste in which the letter is written. 2. The inability of the writer to remember all the facts, 3. The writer may not have considered the subject “worth wasting much time on.” And for the same reasons the writers may have put some of the occurrences out of the order in which they actually took place. Few of them say, ‘I had not told you so-and-so,” for they take it that so much is clearly under- stood; else there would be no need of the letter. In one or two cases I have split the letter into two parts, in order that the testimony