To preserve and to rear so frail a being, the most tender assiduity was scarcely sufficient, and my mother's attention was somewhat diverted by an exclusive passion for her husband, and by the dissipation of the world, in which his taste and authority obliged her to mingle. But the maternal office was supplied by my aunt, Mrs. Catherine Porten; at whose name I feel a tear of gratitude trickling down my cheek. A life of celibacy transferred her vacant affection to her sister's first child; my weakness excited her pity; her attachment was fortified by labour and success: and if there be any, as I trust there are some, who rejoice that I live, to that dear and excellent woman they must hold themselves indebted. Many anxious and solitary days did she consume in the patient trial of every mode of relief and amusement. Many wakeful nights did she sit by my bedside in trembling expectation that each hour would be my last. Of the various and frequent disorders of my childhood my own recollection is dark. Suffice it to say, that while every practitioner, from Sloane and Ward to the Chevalier Taylor, was successively summoned to torture or relieve me, the care of my mind was too frequently neglected for that of my health: compassion always suggested an excuse for the indulgence of the master, or the idleness of the pupil; and the chain of my education was broken, as often as I was recalled from the school of learning to the bed of sickness. As soon as the use of speech had prepared my infant reason for the admission of knowledge, I was taught the arts of reading, writing, and arithmetic. So remote is the date, so vague is the memory of their origin in myself, that, were not the error corrected by analogy, I should be tempted to conceive them as innate. In my childhood I was praised for the readiness with which I could multiply and divide, by memory alone, two sums of several figures; such praise encouraged my growing talent; and had I persevered in this line of application, I might have acquired some fame in mathematical studies.