DERMAL PAPILLA AND THE DEVELOPMENT AND GROWTH OF HAIR 753 (6) Wessells, N. K. and Roessner, K. D. Nonproliferation in dermal condensations of mouse vibrissae and pelage hairs. Develop. Biol. 19. 419 (1965). (7) Breathnach, A. S. and Smith, J. Fine structure of the early hair germ and dermal papilla in the human foetus. J..4nat. 109. 511 (1968). (8) Bell, M. in Montagna, W. and Dobson, R. L. Hair growth 61 (1969) (Pergamon Press New York). (9) Saunders, J. W. in McElroy, W. D. and Glass, B. A. •S]ymposium on the chemical basis of development 239 (1958) (John Hopkins Press, Baltimore). (10) Sengel, P. in Montagna, W. and Lobitz, W2 C. The epidermis 15 (1964) (Academic Press, New York). (11) Rawles, M. E. in Lyne, A. G. and Short, B. F. Biology of the skin and hair growth 105 (1965) (Angus and Robertson, Sydney). (12) Sengel, P. and Pautou, M. Experimental conditions in which feather morphogenesis predominates over scale morphogenesis in bird embryos. Nature 29,2 693 (1969). (13) Dhouailly, D. Analyse des facteurs de la differentiation sp•cifique de la plume ndoptile chez le canard et le poulet. J. Embryol. Exptl. Morphol. 18 389 (1967). (14) Dhouailly, D. Determinisme de la differentiation sp•cifique des plumes n•optiles et t•l•optiles chez le poulet et le canard. J. Embryol. Exptl. Morphol. 9,4 73 (1970). (15) Jacobson, C. M. A comparative study of the mechanisms by which X-irradiation and genetic mutation cause loss of vibrissae in embryonic mice. J. Embryol. oexptl. g4orphol. 16 369 (1966). (16) Kollar, E. J. The inhibition of vibrissa development in vitro by Beta-2-thienylalanine. J. Invest. Dermatol. 50 319 (1968). (17) Kollar, E. J. and Baird, G. R. Tissue interactions in embryonic mouse tooth germs. II. The inductive role of the dental papilla. J. Embryol. oexptl. Morphol. 9,4 173 (1970). (18) Kollar, E. J. An in vitro study of hair and vibrissae development in embryonic mouse skin. J. Invest. Dermatol. 46 254 (1966). (19) Fleischmajer, R. and Billingham, R. E. oepithelial-mesenchymal interactions (1968) (Williams and Wilkins, Baltimore). (20) Wessells, N. K. Some thoughts on embryonic inductions in relation to determination J. Invest. Dermatol. 55 221 (1970). (21) Billingham, R. E. and Silvers, W. K. in Lyne, A. G. and Short, B. F. Biology of the skin and hair growth 1 (1965) (Angus and Robertson, Sydney). (22) Billingham, R. E. and Silvers, W. K. Studies on the conservation of epidermal speci- ficities of skin and certain mucosas in adult mammals. J. oexptl. Med. 19,5 429 (1967). (23) Billingham, R. E. and Silvers, W. K. in Fleischmajer, R. and Billingham, R. E. oepi- thelial-mesenchymal interactions 252 (1968) (Williams and Wilkins, Baltimore). (24) Lillie, F. R. and Wang, H. Physiology and development of the feather. V. Experimental •norphogenesis. Physiol. Zool. 14 103 (1941). (25) Lillie, F. R. and Wang, H. Physiology and development of the feather. VI. The pro- duction and analysis of feather chimaerae. Physiol. Zool. 17 1 (1944). (26) Wang, H. Morphogenetic functions of the epidermal and dermal components of the papilla in feather regeneration. Physiol. Zool. 16 325 (1943). (27) Wolbach, S. B. The hair cycle of the mouse and its importance in the study of sequences of experimental carcinogenesis. •lnn. N.Y. Acad. Sci. 53 517 (1951). (28) Geary, J. R., Jnr. Effect of roentgen rays during various phases of the hair cycle ofthe albino rat. •lm. •J. Anat. 01 51 (1952). (29) Chase, H. B. The physiology and histochemistry of hair growth. J. Soc. Cosmet. Chem. 6 9 (1955). (30) Billingham, R. E. in Montagna, W. and Ellis, R. A. The biology of hair growth 4õ1 (1958) (Academic Press, New York). (31) Cohen, J. The transplantation of individual rat and guinea-pig whisker papillae. J. Embryol. oexptl. Morphol. 0 117 (1961). (32) Vincent, S. B. The tactile hair of the white rat. J. Comp. Neurol. 9,3 1 (1913). (33) Oliver, R. F. Whisker growth after removal of the dermal papilla and lengths of follicle in the hooded rat. J. Embryol. oexptl. Morphol. 1õ 331 (1966). (34) Danforth, C. H. Hair in its relation to questions of homology and phylogeny. •4m. J. •lnat. 36 47 (1935). (35) Oliver, R. F. Histological studies of whisker regeneration in the hooded rat. J. oembryol. oexptl. Morphol. 16 231 (1966). (36) Oliver, R. F. Ectopic regeneration of whiskers in the hooded rat from implanted lengths of vibrissa follicle wall. J. Embryol. Exptl. Morphol. 17 27 (1967).

754 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS (37) (3s) (39) (40) (41) (42) (43) (44) (45) (46) (47) (48) (49) (so) (51) (52) (53) (54) (55) (56) (57) (ss) (59) (6O) (61) (62) (63) (64) (65) (66) Oliver, R. F. in Fleischmajer, R. and Billingham, R. E. trpithelial-mesenchymal inter- actions 267 (1968) (Williams and W'ilkins, Baltimore). Oliver, R. F. The experimental induction of whisker growth in the hooded rat by im- plantation of dermal papillae. J. Ernbryol. Exptl. Morphol. 18 43 (1967). Cohen, J. Transplantation of hair papillae. Syrup. Zool. Soc. London 19, 83 (1964). Cohen, J. in Lyne, A. G. and Short, B. F. Biology of skin and hair growth 183 (1965) (Angus and Robertson, Sydney). Oliver, R. F. The induction of hair follicle formation in the adult hooded rat by vibrissa dermal papillae. J. Ernbryol. Exptl. Morphol. 9,8 219 (1970). Oliver, R. F. Unpublished results. Wessells, N. K. Differentiation of epidermis and epidermal derivatives. New Engl. J. Med. 2?? 21 (1967). Cohen, J. in Montagna, W. and Dobson, R. L. Hair growth 1 (1969) (Pergamon Press, New York). Wessells, N. K. Morphology and proliferation during early feather development. Develop. Biol. 12 131 (1965). Straile, W. E. in Montagna, W. and Dobson, R. L. Hair growth 369 (1969) (Pergamon Press, New York). Hardy, M. H. in Montagna, x•V. and Dobson, R. L. Hair growth 35 (1969) (Pergamon Press, New York). Montagna, W. and Chase, H. B. Histology and cytochemistry of human skin. X. X- irradiation of the scalp. Am. J. Anat. 99 415 (1956). Kligman, A.M. Pathologic dynamics of human hair loss. I. Telogen effluvium. Arch. Dermatol. 83 175 (1961). Ebling, F. J. and Johnson, E. Systemic influence on activity of hair follicles in skin homografts. J. Embryol. Exptl. Morphol. 9 285 (1961). Ebling, F. J. and Johnson, E. The control of hair growth. Syrup. Zool. Soc. London 12 97 (1964). Ebling, F. J. in Lyne, A. G. and Short, B. F. Biology of skin and hair growth 507 (1965) (Angus and Robertson, Sydney). Silver, A. F., Chase, tt. B. and Arsenault, C. T. Spontaneous and experimental hair growth of the mouse pinna. J. Invest. Dermatol. 48 444 (1967). Bullough, W. S. Mitotic and functional homeostasis: a speculative review. Cancer Res. 25 1683 (1965). Montagna, W., Chase, H. B., Malone, J. D. and Melaragno, H. P. Cyclic changes in poly- saccharides of the papilla of the hair follicle. Quart. J. Microscop. Sci. 93 241 (1952). Johnson, P. L., Butcher, E. O. and Beverlander, G. The distribution of alkaline phos- phatases in the cyclic growth of the rat hair follicle. Anat. Record 98 355 (1945). Hamilton, H. L. in Lyne, A. G. and Short, B. F. Biology of the skin and hair growth 313 (1965) (Angus Robertson, Sydney). Rudall, K. M. The size and shape of the papilla in xvool follicles. Proc. Int. Wool Textile Conf. Australia P F9 (1965). Van Scott, E. J. and Ekel, T. M. Geometric relationships between the matrix of the hair bulb and its dermal papilla in normal and alopecic scalp J. Invest. Dermatol. 81 281 (mSS). Van Scott, E. J., Ekel, T. M. and Auerbach, R. Determinants of rate and kinetics of cell division in scalp hair. J. Invest. Dermatol. 41 269 (1963). Priestley, G. C. and Rudall, K. M. in Lyne, A. G. and Short, B. F. Biology of the skin and hair growth 165 (1965) (Angus and Robertson, Sydney). Priestley, G. C. Histological studies of the skin follicle types of the rat with special reference to the structure of the Huxley layer. J. A nat. 101 491 (1967). Straile, W. E. in Lyne, A. G. and Short, B. F. Biology of the skin and hair growth 35 (1965) (Angus and Robertson, Sydney). Puccinelli, V., Caputo, R. and Ceccarelli, B. Changes in the basement membrane of the papilla and wall of the human hair follicle. •/rch. Klin. Exptl. Dermatol. 233 172 (1968). Parakkal, P. F. The fine structure of the dermal papilla of the guinea-pig hair follicle. J. Ultrastrucl. Res. 14 133 (1966). Oliver, R. F. The vibrissa dermal papilla and its influence on epidermal tissues. Brit. J. Dermatol. 81 Suppl. 3 55 (1969).