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The City with Golden Garbage

Another rare and obscure article on Pfeiffer regarding his bacterial cultures to compost Oakland’s garbage (probably simple food wastes and paper wastes in the late 40s and early 50s) – talked about in legendary terms but out of reach.

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The Compost Manufacturer’s Manual

Fifty years before the soil foodweb became in the 1990s, Pfeiffer was using microscopes, preparing microbial inoculants, making superior quality composts, teaching farmers how to employ biological farming practices to improve soil organic matter, soil structure, and soil fertility – which in modern times is known as “soil health” -- and conducting cutting edge research on soil fertility, soil biology, soil humus, and food quality. 
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Wege zur Natur

Eine Einführung in micrologiche studien für anfänger From a generous donation by Thorsten Perl and friends of the digitalized collection of works by and about Dr. Raoul H. Francé and his wife Annie Francé-Harrar.

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Die Lichtsinnesorgane der Algen

Studien zum Ausbau der vegetabilen Reizphysiologie I From a generous donation by Thorsten Perl and friends of the digitalized collection of works by and about Dr. Raoul H. Francé and his wife Annie Francé-Harrar.

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Mikrokosmos

Zeitschrift für angewandte Mikroskopie, Mikrobiologie, Mikrochemie und mikroskopische Technik From a generous donation by Thorsten Perl and friends of the digitalized collection of works by and about Dr. Raoul H. Francé and his wife Annie Francé-Harrar.

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Plants As Inventors

From a generous donation by Thorsten Perl and friends of the digitalized collection of works by and about Dr. Raoul H. Francé and his wife Annie Francé-Harrar.

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