1. Remarks on the environmental adaptation of man

   • H. Walter

   Reviews Pages: 85 - 97

2. Experimentelle Beiträge zum Problem der lokalen Achromasien (Gaps)

   • Erich Gebhart

   Originalarbeiten Pages: 98 - 107

3. A new human allotype carried by the γG3 subclass: Gm(25)

   • Liliane Rivat
   • Madeleine Blanc
   • J. Ruffie

   Original Investigations Pages: 108 - 117

4. Evidence against nutritional adaption of tolerance to lactose

   • G. Flatz
   • H. W. Rotthauwe

   Original Investigations Pages: 118 - 125

5. Cytogenetic, clinical and genealogical analyses in a series of gonadal dysgenesis patients and their families

   • Margarete S. Mattevi
   • Henry Wolff
   • Maria C. Mallmann

   Original Investigations Pages: 126 - 143

6. XYY chromosomal complement, proven by fluorescence, in a child with trisomy 21: 48,XYY,21+

   • Magda Osztovics
   • Gyula Ivády
   • Erica M. Bühler

   Original Investigations Pages: 144 - 150

7. Concordant metaphyseal dysostosis type Schmid in identical twins

   • Tadashi Kajii
   • Tadashi Ohsawa
   • Motonobu Sugai

   Original Investigations Pages: 151 - 156

8. Non-random association of human acrocentric chromosomes

   • Shivanand R. Patil
   • Herbert A. Lubs

   Short Communications Pages: 157 - 159

9. Structural variability of the normal human karyotype

   • H. Zankl
   • K. D. Zang

   Short Communications Pages: 160 - 162

10. Über die Hautleistenbefunde von 18 Patienten mit Robin-Syndrom

    • H. Brehme
    • F. Härle

    Kurze Originalmitteilungen Pages: 163 - 165

11. On the position of chromosomes in prepared mitosis figures of human fibroblasts

    • J. J. Hoo
    • H. Cramer

    Short Communications Pages: 166 - 170