appended to it a reprint of a short article which I had written in the Fortnightly Review early in 1873, partly to show the interest with which I had pursued cognate inquiries, and partly as a guarantee of the tone and spirit in which the inserted communications would be treated. Also I presumed, and, as it has proved, not without reason, that being more or less personally acquainted with a large majority of the scientific men on my list, they would be inclined to put greater faith in my discretion than if I had been a stranger. Subject to these preparatory explanations, the following are the questions that I circulated :
INQUIRY INTO THE ANTECEDENTS OF SCIENTIFIC MEN.
Please return this schedule at your earliest convenience, with answers to as many of the questions as you consider to be unobjectionable, and send on a separate paper any further information that you may think germane to the inquiry. Entries marked " Private " will be dealt with in strict confidence; they will be used only as data for general statistical conclusions.
NOTE.-Whenever you consider the grade of the quality about which a question is asked, to fall near mediocrity, do not make any entry at all.
Christian names of yourself, your father, and your