| Issue | #3 |
| Published | April-June 1951 |
| Frequency | Quarterly |
| Cover Price | 0.10 USD |
| Pages | 52 |
| Editing | ? |
| Characters | Lassie; Rocky Langford |
| Genre | animal |
| Pencils | ? (painting) |
| Inks | ? (painting) |
| Colors | ? (painting) |
| Notes | The front and back cover paintings share a common background. Lassie appears on both covers, otherwise it would have been a wraparound cover. |
| Characters | Lassie |
| Genre | animal |
| Pencils | ? (photograph) |
| Inks | ? (photograph) |
| Characters | Lassie; Rocky Langford; Mr. Lawrence; Gerry Lawrence; Ben; Commando; Mr. Slinger; Shorty; Otto; Captain Brine |
| Synopsis | Mr. Lawrence, Gerry, Rocky and Lassie sail on a treasure hunt guided by Mr. Slinger, Shorty and Otto. Having reached an island with a sunken Spanish galleon, they are in for a surprise. |
| Genre | animal |
| Letters | typeset |
| Characters | Lassie |
| Genre | animal |
| Pencils | ? (photograph) |
| Inks | ? (photograph) |
| Characters | Lassie |
| Synopsis | Two pirates are climbing the rocks to attack Lassie. |
| Genre | animal |
| Pencils | ? (painting) |
| Inks | ? (painting) |
| Colors | ? (painting) |
| Notes | This painting is a more elaborate version of the art in the 4th panel of the story's 29th page. See also notes to the front cover. |