1. In his book emphasis is placed on the localization problem. 2. Reference was made of his earlier publication. 3. Mention is made of an improved version of this method. 4. An important contribution was made to the study of this phenomenon. 5. Care must be taken to assure that an even number of logical inversions occur. 6. An attempt was made to redefine the previous year's budget. 7. In their discussion no account was taken of the environmental conditions. 8. Advantage is often taken of the effect of temperature on solubility. 9. In this chapter detailed consideration is given to digital computers. 10. In deriving these formulas no allowance was made for temperature increase. 11. In the following notice is chiefly taken of the former point. 12. Special attention has been called to the research work. 13. Steps are taken to diminish friction.