Methane Digesters For Fuel Gas and Fertilizer PDF

Methane Digesters  For Fuel Gas and Fertilizer With Complete Instructions For Two Working Models

by
L. John Fry
Santa Barbara, California

"Methane Digesters" is also published, independently, as Newsletter No. 3,
Spring 1973,
by The New Alchemy Institute, Box 432, Woods Hole, Massachusetts 02543,


Eighth Printing
© 1973 L. John Fry
Richard Merrill

Inspiration: L. John Fry
Contributors: L. John Fry, Richard Merrill
Editors: Richard Merrill, Yedida Merrill
Artwork: Beth Amine
Thanks to: Earl Barnhart
Kim Mitchell

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