(Amsterdam), 1965.

[ref.61] _Portner, D. M.; Hoffman, R. K.; Decker, H. M.; and Phillips, C. R.:_ The Level of Microbial Contamination in a Clean Room During a One-Year Period. Rept. 11-65 on NASA Interagency Agreement R-35, 1964.

[ref.62] _Bruch, C. W.:_ Some Biological and Physical Factors in Dry-Heat Sterilization: A General Review. _In_ Life Sciences and s.p.a.ce Research II. M. Florkin and A. Dollfus, eds., North-Holland Publ. Co. (Amsterdam), 1964.

[ref.63] _Bruch, C. W.:_ Dry-Heat Sterilization for Planetary-Impacting s.p.a.cecraft. Tech. Rept. on s.p.a.cecraft Sterilization. Jet Propulsion Lab., 1965.

[ref.64] _Pollard, E.:_ Pilot Theoretical Study of the Effect of Weightlessness and Densely Ionizing Radiation on Single Cells.

Progr. Rept. on Contract NsG-182-62. NASA, 1962.

[ref.65] _Lyon, C. J.:_ Auxin Transport in Leaf Epinasty. Plant Physiol., vol. 38, 1963, pp. 567-574.

[ref.66] _McKinney, R.; Montgomery, P. O'B.; and Gell, C. F.:_ A Study of the Effects of Zero Gravity on Cell Physiology. _In_ Physical and Biological Phenomena in a Weightless State.

Second AAS Symp. Phys. Biol. Phenomena Under Zero Gravity Conditions. E. T. Benedikt and R. W. Halliburton, eds., Advan.

Astronaut. Sci., vol. 14, 1963, pp. 291-306.

[ref.67] Committee on Environmental Biology: Report of Panel on Gravity. s.p.a.ce Science Board, Natl. Acad. Sci.-Natl. Res.

Council, 1964.

[ref.68] _Chase, H. B.:_ Cutaneous Effects of Primary Cosmic Radiation.

J. Aviation Med., vol. 25, 1954, p. 388.

[ref.69] _Zhukova, A. I.; and Kondratyev, I. I.:_ On Artificial Martian Conditions Reproduced for Microbiological Investigations. _In_ Life Sciences and s.p.a.ce Research III, M. Florkin, ed., North-Holland Publ. Co. (Amsterdam), 1965, pp. 120-126.

[ref.70] _Davis, I.; and Fulton, J. D.:_ Microbiological Studies on Ecological Considerations of the Martian Environment. USAF SAM Review, vol. 2, 1959, p. 60.

[ref.71] _Roberts, T. S.; and Irvine, L. A.:_ Studies With a Simulated Martian Environment. Germination and Growth of Bacterial Spores. Tech. Doc. Rept. 63-75. USAF School Aeros.p.a.ce Med., 1963.

[ref.72] _Roberts, T. L.; and Wynn, E. S.:_ Studies With a Simulated Martian Environment. Bacterial Survival and Soil Moisture Content. Tech. Doc. Rept. 62-121. USAF School Aeros.p.a.ce Med., 1962.

[ref.73] _Siegel, S. M.; Giumarro, C.; and Latterall, R.:_ Behavior of Plants Under Extraterrestrial Conditions: Seed Germination in Atmospheres Containing Nitrogen Oxides. Proc. Natl. Acad. Sci.

U.S., vol. 52, 1961, pp. 11-13.

[ref.74] _Siegel, S. M.; Halpern, L. A.; Giumarro, C.; Renwick, G.; and Davis, G.:_ Martian Biology: The Experimentalist's Approach.

Nature, vol. 193, 1963, pp. 329-331.

[ref.75] _Kiess, C. C.; Corliss, C. H.; and Kiess, H.:_ Evidence for Oxides of Nitrogen in the Atmosphere of Mars. Science, vol.

131, 1960, p. 1319.

[ref.76] _Vallentyne, J. R.:_ Environmental Biophysics and Microbial Ubiquity. Ann. N.Y. Acad. Sci., vol. 108, 1963, pp. 342-352.

[ref.77] _Henry, J. P.; Ballinger, E. R.; Maher, P. J.; and Simons, D.

G.:_ Animal Studies of the Subgravity State During Rocket Flight. J. Aviation Med., vol. 23, 1952, p. 421.

[ref.78] _Van der Wal., F. L.; and Young, W. D.:_ A Preliminary Experiment With Recoverable Biological Payloads in Ballistic Rockets. Project MIA. Rept. 715-58, Am. Rocket Soc., 1958.

[ref.79] _Van der Wal, F. L.; and Young, W. D.:_ Project MIA (Mouse-in-Able) Experiment on Physiological Response to s.p.a.ce Flight. ARS J., vol. 29, 1954, p. 716.

[ref.80] _Graybiel, A.; Holmes, R. A.; Beischer, D. E.; Champlin, G.

E.; Pedigo, G. P.; Hixson, W. C.; Davis, T. R. A.; Barr, N.

L.; Kistler, W. G.; Niven, J. T.; Wilbarger, E.; Stullken, D.

E,; Augerson, W. S.; Clark, R.; and Berrian, J. H.:_ An Account of Experiments in Which Two Monkeys Were Recovered Unharmed After Ballistic s.p.a.ce Flight. Aeros.p.a.ce Med., vol.

30, 1959, p. 871.

[ref.81] _Green, C. D.; Welch, B. E.; Brown, W. L.; Lamb, L. E.; Tang, P. C.; Gisler, D. B.; and Blodgett, H. C.:_ Studies of Escape From Ballistic s.p.a.ce Vehicles. Rept. 61-29, School Aviation Med., sec. 1, pp. 1-24; sec. 2, pp. 1-16, 1961.

[ref.82] _Belleville, R. E.; Rohles, F. H.; Grunzke, M. E.; and Clark, F. C.:_ Development of a Complex Multiple Schedule in the Chimpanzee. J. Exp. a.n.a.l. Behav., vol. 6, 1963, pp. 549-556.

[ref.83] _Henry, J. P.; and Mosely, J. D.:_ Results of the Project Mercury Ballistic and Orbital Chimpanzee Flights. NASA SP-39, 1963.

[ref.84] _Grunzke, M. E.:_ A Liquid Dispenser for Primates. J. Exp.

a.n.a.l. Behav., vol. 4, 1961, p. 326.

[ref.85] _Grunzke, M. E.:_ Feeding Devices for Use With Primates in s.p.a.ce Flight. Tech. Doc. Rept. 61-35, USAF Missile Develop.

Center, 1961.

[ref.86] _Gilbert, G. A.:_ A Zero Gravity Pellet Dispenser for Use With Primates in Long-Term s.p.a.ce Flights. ARL Tech. Rept. 64-15, 1964.

[ref.87] _Meehan, J. P.; Fineg, J.; and Mosely, J. D.:_ The Effect of Restraint and Training on the Arterial Pressure of the Immature Chimpanzee. Federation Proc., vol. 23, 1964.

[ref.88] _Findley, J.; and Weissman, N.:_ "Counting" in a Baboon. Paper presented at Psychonomic Soc. Meeting (New York), 1961.

[ref.89] _Findley, J.; and Brady, J. V.:_ Exposure to Total and Continuous Environmental Control With a Single Human Organism.

Paper presented at Symp. at 7th Annual Meeting, Human Factors Soc. (Palo Alto, Calif.), 1963.

[ref.90] _Findley, J.:_ An Experimental Outline for Building and Exploring Multioperant Behavior Repertories. J. Exp. a.n.a.l.

Behav., vol. 5, 1962, pp. 113-116.

[ref.91] _Beasley, J.; and Seldeen, B.:_ The Effect of Prolonged Acceleration on Eating and Performance. NASA TM X-54:077, 1964.

[ref.92] _Smith, A. H.; Winget, C. M.; and Kelly, C. F.:_ Growth and Survival of Birds Under Chronic Acceleration. Growth, vol. 23, 1959, p. 97.

[ref.93] _Winget, C. M.; Smith, A. H.; and Kelly, C. F.:_ Effects of Chronic Acceleration on Induced Nystagmus in the Fowl. J.

Appl. Physiol., vol. 17, 1962, p. 709.

[ref.94] _Wunder, C. C.:_ Food Consumption of Mice During Continual Centrifugation. Proc. Iowa Acad. Sci., vol. 68, 1961, pp.

616-624.

[ref.95] _Wunder, C. C.:_ Survival of Mice During Chronic Centrifugation. Aeros.p.a.ce Med., vol. 33, 1962, pp. 866-870.

[ref.96] _Wunder, C. C.; Lutherer, L. C.; and Dodge, C. H.:_ Survival and Growth of Organisms During Life-Long Exposure to High Gravity. Aeros.p.a.ce Med., vol. 34, 1963, pp. 5-11.

[ref.97] _Dodge, C. H.; and Wunder, C. C.:_ Growth of Turtles During Continual Centrifugation. Proc. Iowa Acad. Sci., vol. 69, 1962, pp. 594-599.

[ref.98] _Oyama, J.; and Platt, W.:_ Effects of Deceleration on Rats Exposed to Prolonged Centrifugation. Nature, vol. 203, 1964, pp. 766-767.

[ref.99] _Matthews, B. H. C.:_ Adaptation to Centrifugal Acceleration.

J. Physiol., vol. 122, 1953, p. 31.