On his father’s death, his mother removed to London, where, somehow or other, she brought up her children by her own exertions, and with such care and affection that Jonas never spoke, or wrote, of his mother but in terms of the highest reverence and gratitude. He was sent to school, where he was not only educated commercially, but classically. Still, he had his bread to win, and, when he was seventeen years of age, he was sent to Lisbon, which he reached June, 1729, and was bound apprentice to a merchant, under whose auspices he developed the business qualities which afterwards stood him in good stead. At the end of his apprenticeship he set up in business for himself in Lisbon, but soon removed to the wider field of London. What pursuit he followed there, neither he, nor any biographer of his, has told us, but in 1743 he accepted the offer of a partnership in Mr. Dingley’s house at St. Petersburg. What a difference in the voyage from London to St. Petersburg, then and now! Now, overland: it only takes two days and a half. Then, in April, 1743, he embarked on the Thames in a crazy old tub, bound for Riga, and got to Elsinore in May. As everything then was done in a leisurely manner, they stopped there for some days, arriving at Riga by the end of May, having taken twenty-six days to go from Elsinore to Riga, now done by steam, under fair conditions, in two days. Here he found, as most people do, the Russian spring as hot as he ever remembered summer in Portugal, and was most hospitably entertained by the British factors. But Russia was at war with Sweden, and, although he had plenty of letters of recommendation, the Governor of Riga would not allow him to proceed on his journey, until he had communicated with the authorities at St. Petersburg, thus causing a delay of a fortnight, and he did not leave until the 7th of June. His sojourn at Riga, however, was not lost, for he kept his eyes open, and looked about him. Travelling by post in Russia, even now, is not a luxury; it must have been ten times worse then, when he started on his journey in his sleeping-wagon, which was ‘made of leather, resembling a cradle, and hung upon braces,’ and his report of his journey was that ‘the post-horses are exceedingly bad, but as the stages are short, and the houses clean, the inconvenience is supportable.’ He made the journey in four days.