[COVER] "Chromosome Counts 3-1-1978"
[SPINE] "Chromosome Counts"

[COVER] "Mary Gibby 22-2-79"
[SPINE] "Chromosome Counts"

[COVER] "Mary Gibby Chromosome Counts 26-3-80"
[SPINE] "Chromosome Counts"

[COVER] "Mary Gibby Chromosome Counts 1-4-81"
[SPINE] "Chromosome Counts"

[COVER] "Steroscan Stubs STEREOSCAN Chromosome Counts Mary Gibby 10-8-81"
[SPINE] "Chromosome Counts"

[COVER] "Mary Gibby" [Cut out picture of a swan's head on front cover]
[SPINE] "Chromosome Counts"

[COVER] "Chromosomes 13-4-83 Mary Gibby"
[SPINE] "Chromosome Counts"

[SPINE] "Chromosome Counts 1973"

[BLANK COVER & SPINE]

[COVER] 'Mary Gibby'