Comparative investigations into the influence of the presence of bacteria on the life of pathogenic and apathogenic leptospirae R. Abdoelrachman OriginalPaper Pages: 21 - 32
The influence of the oxidation-reduction potential of the medium upon the growth ofAzotobacter chroococcum A. Quispel OriginalPaper Pages: 33 - 43
A reaction on the formation of hydrogen peroxide by microorganisms in solid media A. Kneteman OriginalPaper Pages: 55 - 62
The cause of the early gas defect in cheese and the means to prevent it Th. E. Galesloot OriginalPaper Pages: 67 - 95
Some observations on the culture, physiology and morphology of some brown-redRhodospirillum-species G. Giesberger OriginalPaper Pages: 135 - 148
A photometer for the extinctiometric determination of the density of suspensions of microorganisms with minimal deviation from the law of Beer-Lambert H. Van GenderenR. Th. Scholtens OriginalPaper Pages: 153 - 161
A case of acute gastro-enteritis caused byS. Manhattan A. ClarenburgP. C. DröesA. Charlotte Ruys OriginalPaper Pages: 162 - 164
The sealing under vacuum in ampoules of freeze dried suspensions of bacteria and viruses O. Bosgra OriginalPaper Pages: 165 - 169
