And what better time to introduce logic than at the beginning of the course. No statement should be taken as a postulate when it can be proved, especially when it can be easily proved. A number of definitions are also given in the first chapter. Later postulates deal with distance on a line, lengths of line segments, and angles. The book does not properly treat constructions.
Constructions can be either postulates or theorems, depending on whether they're assumed or proved.
For instance, postulate 1-1 above is actually a construction. Later in the book, these constructions are used to prove theorems, yet they are not proved here, nor are they proved later in the book. At the very least, it should be stated that they are theorems which will be proved later. It is followed by a two more theorems either supplied with proofs or left as exercises. Also in chapter 1 there is an introduction to plane coordinate geometry.