39

O.10

and this must have been repeated on the following days, since subsequent tests proved that I had then fairly mastered that excellent and charming treatise. From that day to this logic has been my passion. After taking my degree in chemistry, I submitted myself to training in a varied range of sciences sufficient to enable me to produce at least one independent and original investigation in each; and, though none was of an ambitious nature, all were received with respect by master in the several departments, and one, at any rate, after several leading men had first made and then withdrawn objections to it, sensibly modified the usual method pursued in that