Phenotypic “sex” determination in the life history of a new species ofBlastocladiella, B. Emersonii Edward C. CantinoMildred T. Hyatt OriginalPaper Pages: 25 - 70
Nitrogen fixation and photoproduction of molecular hydrogen byThiorhodaceae Jack W. NewtonP. W. Wilson OriginalPaper Pages: 71 - 77
Bacteriological investigation of a case of red discolouration in Dutch salted summer herring A. F. M. G. LuijpenD. A. A. MosselC. J. H. van den Broek OriginalPaper Pages: 78 - 82
Theratromyxa weberi, a new proteomyxean organism from soil L. O. Zwillenberg OriginalPaper Pages: 101 - 116
Mise en evidence des noyaux bacteriens par traitement des frottis au laubrylsulfate ou au lauryl-sulfonate de soude N. Delmotte OriginalPaper Pages: 117 - 119
Étude du Métabolisme D'acides Aminés chezAspergillus oryzae Paul SimonartKwang Yü Chow OriginalPaper Pages: 121 - 134
On the formation of diphtheria toxin in saliva byC. diphtheriae A. TasmanL. Smith OriginalPaper Pages: 135 - 148
Some factors involved in the titration and neutralisation of vaccinia virus R. Gispen OriginalPaper Pages: 149 - 156
Estimation of protective antibodies in vaccinia convalescent gamma-globulin R. Gispen OriginalPaper Pages: 157 - 165
Derivatives of p-aminobenzoic acid and their action on the growth of bacteria J. L. Sirks OriginalPaper Pages: 166 - 170
Non-competitive antagonists for derivatives of p-aminobenzoic acid J. L. Sirks OriginalPaper Pages: 171 - 180
The antigenic composition of the influenza virus B strains isolated during the epidemic of influenza B in the winter 1951/52 in the Netherlands J. MulderL. M. BransMiss I. De Nooyer OriginalPaper Pages: 189 - 196
Influence of soil-aggregating substances on the population of gum-producing bacteria in a loess soil F. W. HelyCh. Bonnier OriginalPaper Pages: 211 - 223
The combined action of p-aminosalicylic acid and streptomycin with isonicotinic acid hydrazide in vitro A. J. Zwart VoorspuijC. A. G. Nass OriginalPaper Pages: 225 - 236
Investigation into the tuberculostatic activity of some aromatic hydroxy compounds J. GootjesA. J. Zwart VoorspuijW. Th. Nauta OriginalPaper Pages: 237 - 244
Étude du Métabolisme D'acides Aminés ChezAspergillus oryzae Paul SimonartKwang Yü Chow OriginalPaper Pages: 245 - 255
On a new method of preparing staphylococcus toxin and toxoid A. TasmanJ. van der Slot OriginalPaper Pages: 256 - 266
A standardized wassermann screening test, which may be carried out in one tube H. H. CohenA. E. BeuteMiss E. v. Berkum OriginalPaper Pages: 267 - 274
Untersuchungen über die Physiologie der Weinhefen. IV. Mitteilung T. WikénO. Richard OriginalPaper Pages: 279 - 299
Experiments on the cultivation of rhizobium in liquid media for use on the Zuiderzee polders D. A. van SchrevenG. W. HarmsenD. Otzen OriginalPaper Pages: 300 - 308
Studies on the elimination of non-specific inhibitors in sera against influenza viruses with the aid of filtrates ofVibrio cholerae L. M. BransE. HertzbergerJ. Mulder OriginalPaper Pages: 309 - 323
On the suitability of gelatin for plate cultures. I. H. W. L. BruckmanJ. J. Rook OriginalPaper Pages: 341 - 353
On the suitability of gelatin for plate cultures. II J. J. RookH. W. L. Bruckman OriginalPaper Pages: 354 - 362
Contamination of polder water withSalmonella paratyphi as a consequence of the discharge of sewage Juliana C. H. BroekC. P. Mom OriginalPaper Pages: 363 - 372
