I will first endeavor to give you advice on how to develop your arms. Chinning the bar is excellent for the arms, especially your upper arms. If convenient, you might also try to procure a pair of five pound dumb-bells; by practicing dumb-bell exercises you can greatly increase the muscles in your arms. You will find the following a very good exercise for the forearms: Take two pieces of newspaper and roll them up tightly in the palms of your hands. At first you will have to use small pieces of newspaper but as soon as you can roll them into tight balls, increase the size of the paper.