The book is available at Sacred Texts, Internet Archive, and Hathi Trust.
The book contains an interlinear translation with the Yana text, followed by a more standard English translation. You can see how that works here:
I. Central Dialect (Gat‘ā'?i)
I. Flint Boy
II. The Theft Of Fire And The Burning Of The World
III. The Visit of the Geese People to Mount Shasta
IV. Bluejay's Journey to the Land of the Moon
V. The Creation of the Yana
VI. Origin of Sex, Hands, and Death
VII. Coyote and his Sister
II. Northern Dialect (Garī'?i.)
II. The Theft Of Fire And The Burning Of The World
III. The Visit of the Geese People to Mount Shasta
IV. Bluejay's Journey to the Land of the Moon
V. The Creation of the Yana
VI. Origin of Sex, Hands, and Death
VII. Coyote and his Sister
II. Northern Dialect (Garī'?i.)
X. Coyote, Pine Marten, and Loon
XI. The Drowning of Young Buzzard's Wife
XII. Coyote, Heron, and Lizard
XIII. The Finding of Fire
XIV. Indian Medicine-Men
XVI. A Lovers' Quarrel
XVII. Childbirth and Death
XVIII. Death and Burial
XIX. Betty Brown's Dream
XX. Spell Said by a Girl Desirous of Getting A Husband
XXI. Curse on People That Wish One Ill
XII. Prayer on Sneezing
Supplementary Texts
XI. The Drowning of Young Buzzard's Wife
XII. Coyote, Heron, and Lizard
XIII. The Finding of Fire
XIV. Indian Medicine-Men
XVI. A Lovers' Quarrel
XVII. Childbirth and Death
XVIII. Death and Burial
XIX. Betty Brown's Dream
XX. Spell Said by a Girl Desirous of Getting A Husband
XXI. Curse on People That Wish One Ill
XII. Prayer on Sneezing
Supplementary Texts
I. The Creation of Men
II. The Contest of Fox and Coyote
III. The Lost Brother
IV. The Flints and Grizzly Bears
V. ‘I'lhat?aina
VI. Fixing the Sun
VII. Woodpecker and Woodrat
VIII. Rabbit Woman and her Child
IX. Coyote and Rabbit Gamble
X. Gopher and Rabbit Gamble
XI. Coyote and the Stump
XII. Loon Woman
XIII. Pine Marten's Quest for Moon's Daughter
II. The Contest of Fox and Coyote
III. The Lost Brother
IV. The Flints and Grizzly Bears
V. ‘I'lhat?aina
VI. Fixing the Sun
VII. Woodpecker and Woodrat
VIII. Rabbit Woman and her Child
IX. Coyote and Rabbit Gamble
X. Gopher and Rabbit Gamble
XI. Coyote and the Stump
XII. Loon Woman
XIII. Pine Marten's Quest for Moon's Daughter