The schoolmasters assistant : being a compendium of arithmetic, both practical and theoretical. In five parts. ... The whole being delivered in the most familiar way of question and answer ... To which is prefixt, an essay on the education of youth; humbly offered to the consideration of parents. By Thomas Dilworth, author of the New guide to the English tongue; Young book-keeper's assistant; &c. &c. and schoolmaster in Wapping. [Six lines of quotations].