Tinker and Tanker Series

The adventures of a rabbit and a hippo by Richard Scarry.
Books in the Tinker and Tanker series:
Tinker and Tanker (1960)

A rabbit and a hippo set out to see the world.
The Adventures of Tinker and Tanker (1961)

An omnibus containing Tinker and Tanker, Tinker and Tanker and Their Space Ship and Tinker and Tanker Out West
Tinker and Tanker and the Pirates (1961)

Adventure on the high seas with the adventuresome rabbit and his hippo friend.
Tinker and Tanker and Their Space Ship (1961)

The intrepid rabbit and his hippo friend are off to explore the stratosphere.
Tinker and Tanker Journey to Tootletown and Build a Spaceship (1961)

Contains Tinker and Tanker and Tinker and Tanker Build a Spaceship, in abbreviated form.
Tinker and Tanker Out West (1961)

Ride ’em cowboy! as Tinker and Tanker travel to the old west.
More Adventures of Tinker and Tanker (1963)

An omnibus containing Tinker and Tanker and the Pirates, and Tinker and Tanker in Africa, and Tinker and Tanker: Knights of the Round Table.
Tinker and Tanker in Africa (1963)

The dark continent holds no fears for the two explorers.
Tinker and Tanker: Knights of the Round Table (1963)

In days of old when knights were bold Tinker and Tanker are ready for adventure.
Tinker and Tanker Travel Out West and to Africa (1963)

Two adventures of the rabbit and hippo abbreviated from earlier volumes.
Tinker and Tanker: Tales of Pirates and Knights (1979)

An omnibus containing Tinker and Tanker and the Pirates and Tinker and Tanker: Knights of the Round Table.