Explorers 213-0037 Fig.23 Goldman-Fox 213-0038 Fig.23 University of Michigan 213-0039 Fig.23 Williams 213-0040 Fig.17 Goldman-fox 213-0041 Fig .17 University of Michigan 213-0042 Fig .17 Williams 213-0043 Fig .23 CP 11 213-0044 Fig .23 CP 12 213-0045 Fig