Part 1 Pathology induced by interleukins: comparative toxicity and pathology associated with administration of recombinant rHuIL-1a to animals, T.D.Anderson, et al; pathogenesis of toxicity with human-derived interleukin-2 in experimental animals, Y. Harada and I. Yahara; comparative toxicity and pathology associated with administration of recombinant IL-2 to animals, T.J. Hayes; toxicity of recombinant human interleukin-4 in cynomolgus monkeys, T.A. Barbolt, et al; pathology induced by interleukin-6, B. Ryffel, et al; interleukin 6 (IL-6) in myeloma/plasmacytoma, S. Suematsu, et al; interleukin-9, J.-C. Renauld, et al. Part 2 Pathology induced by hematopoietic growth factors: comparative toxicity of escherichia coli and yeast rhu IL-3 cynmolgus and rhesus monkeys, G. Reiner, et al; preclinical safety assessment of recombinant human GM-CSF in rhesus monkeys, R.L. Robison and L.A. Meyers; granulocyte colony stimulating factor - animal studies for risk assessment, P. Keller; clinical and histopathological effects on M-CSF in laboratory animals, C.W. Johnson, et al; clinical and histopathological effects on M-CSF in laboratory animals, C.W. Johnson, et al; review of a novel hematopoietic cytokine, interleukin II, V.F.J. Quesniaux, et al; hematologic effects of stem cell factor alone and in combination with G-CSF and GM-CSF "in vivo" and "in vitro" in rodents.