In ten minutes I had seen all that could be seen in the fish, and started to _61_ for the Professor—who had, however, left. Half an hour passed—an hour—_62_ hour; the fish began to look disgusting. I turned it over and around; looked _63_ in the face—ghastly; from behind, beneath, _64_, sideways—just as ghastly. I must not use a magnifying glass, nor instruments of any kind. Just my two hands, my two eyes, and the fish: it _65_ a most limited field of study. With a feeling of _66_ again I looked at that fish. I pushed my finger down its throat to feel how _67_ the teeth were. I began to count the scales in the different rows, until I was _68_ that was nonsense. At last a happy thought struck me—I would _69_ the fish; and now with surprise I began to discover new features _70_ the creature. Just then the Professor returned.
1. _____
look
