No. Iza Spaldmg's Official Athletic Rules No. 27 College Athletics N o. 55 Official Sporting Rules No. 87 Athletic Primer No. 156 Athletes' Guide N o. 178 How to Train for Bicycling No. 182 All Around Athletics No. 255 How to Run 100 Yards No. 302 Y. M. C. A. Official Handbook No. 317 Marathon Running N o. 342 Walking for Health and Com petition N o. 362 Track, Relay and Cross Coun try Rules ofzthe' National Collegiate Athletic Ass'n.