3 issues of Dr. Atomic by Larry S. Todd, published by Last Gasp of San Francisco. Science lessons you won't fine anywhere else.

1. No. 2, 1973, very good with lightly worn cover, age toning inside.

2. No. 3, 1975 age toned, minor edge wear, very good.

3. No. 4, 1976. first printing. Back cover slightly discolored in spots, age toned leaves, overall very good.