Ann Arbon Mich., Nov. 4--Drilling with more attention to the finer details the Wolverine Varsity yesterday went through some of the most intense practice of the season in an attempt to perfect a defense that will stop the Crimson backs. Coach Kipke worked with two complete teams and seems to have developed a system to use against the Harvard aerial attack. The entire squad was in uniform and indications that they are in shape were in evidence when all of the men who have been on the cripple list appeared in the scrimmage against the Freshmen. Coach Fisher's yearlings lined up against the Wolves early in the session with all of the Harvard plays that they have been drilling on for the past week and loosed a strong aerial attack.