1. Critical adjustment of cysteine and glutamine concentrations for improved clonal growth of WI-38 cells

   • Richard G. Ham
   • Susan L. Hammond
   • Linda L. Miller

   OriginalPaper Pages: 1 - 10

2. Isolation of cell lines from embryos of the cockroach,Blattella germanica

   • T. J. Kurtti
   • Marion A. Brooks

   OriginalPaper Pages: 11 - 17

3. Toxicity of prostaglandins A₁ and A₂ for cells in culture

   • L. J. Kagen
   • D. T. Neigel
   • H. J. Robinson Jr.

   OriginalPaper Pages: 18 - 23

4. Early events in the induction of glutamine synthetase activity by hydrocortisone in embryonic chick neural retina

   • Shirley Hull Kovacs

   OriginalPaper Pages: 24 - 30

5. Culture and morphogenetic response of a lethal, chlorophyll-deficient mutant of tobacco to hormones, amino acid and sucrose

   • G. W. Schaeffer

   OriginalPaper Pages: 31 - 35

6. A method for establishing cell lines fromDrosophila melanogaster embryos

   • Nancy S. Petersen
   • Arthur D. Riggs
   • Robert L. Seecof

   OriginalPaper Pages: 36 - 40

7. Organogenesis in vitro cultures of embryonic shoots ofAbies balsamea (balsam fir)

   • J. M. Bonga

   OriginalPaper Pages: 41 - 48

8. Collagen prolyl hydroxylation in WI-38 fibroblast cultures: Action of hydralazine

   • Katherine H. Chen
   • Mercedes A. Paz
   • Paul M. Gallop

   OriginalPaper Pages: 49 - 54

9. Cyclic amp and serum arrest of the mitotic activity of human diploid fibroblasts

   • R. T. Dell'Orco
   • T. J. Martin
   • W. H. J. Douglas

   OriginalPaper Pages: 55 - 62