after one has completed the first two books mentioned, is "Practical Mathematics," by Knott & Mackay ($2.00). The section on Strength of Materials should be studied first and then that on Trigonometry. The other subjects may be studied as the student's interest in the matter dictates.
After completing the books above mentioned it often happens that a man wishes to learn more about mathematics, and an excellent book to buy in such case is "Higher Mathematics for Students of Chemistry and Physics," by J. W. Mellor ($5.00), a book intended for self instruction. In studying mathematics no real power is gained by reading until the principles are understood. To thoroughly understand the subject means many hours of monotonous drill on problems.
It is always assumed that the self-tutored man is employed in some capacity in the office of an engineer or architect, or in the office or shops of some manufacturing concern. If he is engaged in mercantile pursuits he should not try to get into engineering work by home study or even by means of the correspondence school. He will meet in his books a great many statements which will be fully intelligible only to men in the business. The writer makes a special plea to every man to stick to his trade or calling.
After completing the course in mathematics take up:
