Final answer:
The first step in selecting a proper saddle when studying L. F. Korns’s "How to Ride" is to reread the section that discusses saddles in the book.
Step-by-step explanation:
The first step in selecting a proper saddle when studying L. F. Korns’s "How to Ride" is to reread the section that discusses saddles in "How to Ride". This is important because it provides specific information and guidance on saddle selection. After obtaining this knowledge, the student can then proceed to other steps such as taking a test ride or seeking recommendations from other bike owners.