References
- Breneman , W. R. , Zeller , F. J. and Creek , R. O. 1962 . Radioactive phosphorus uptake by chick testes as an end‐point for gonadotropin assay . Endocrinology , 71 : 790 – 798 .
- Brown , P. S. 1955 . The assay of gonadotrophin from urine of non‐pregnant human subjects . J. Endocr. , 13 : 59 – 64 .
- Brown , P. S. 1959 . Human urinary gonadotrophins: II. In relation to the menstrual cycle, secondary amenorrhoea and the response to oestrogen . J. Endocr. , 18 : 46 – 55 .
- Butt , W. R. 1967 . “ Purification of LH and FSH from pituitary tissue ” . In Recent Research on Gonadotrophic Hormones, , Edited by: Bell , E. T. and Loraine , J. A. 118 – 134 . Edinburgh and London : Livingstone .
- Butt , W. R. , Crooke , A. C. , Cunningham , F. J. and Kovačíc , N. 1962 . The biological assay of fractions of gonadotrophin from human pituitary glands . J. Endocr. , 24 : 223 – 225 .
- Butt , W. R. , Crooke , A. C. and Wolf , A. 1965 . “ Some problems related to the investigation of the immunological properties of human pituitary follicle‐stimulating hormone ” . In Gonadotropins : Physicochemical and Immunological Properties. Ciba Foundation Study Group No. 22 , Edited by: Wolstenholme , G. E. W. and Knight , J. 85 – 97 . London : Churchill .
- Cunningham , F. J. 1962 . Induction of ovulation in immature mice as an assay of gonadotrophin . J. Endocr. , 24 : 215 – 221 .
- Dekanski , J. B. and Harvie , M. I. 1960 . The quantitative assay of corticotrophin using rats treated with hydrocortisone acetate . Br. J. Pharmac. Chemother. , 15 : 95 – 100 .
- Gaddum , J. H. 1953 . Simplified mathematics for bioassay . J. Pharm. Pharmac. , 6 : 345 – 358 .
- Heald , P. J. , Furnival , B. E. and Rookledge , K. A. 1967 . Changes in the levels of luteinizing hormone in the pituitary of the domestic fowl during an ovulatory cycle . J. Endocr. , 37 : 73 – 81 .
- Herrick , R. B. , McGibbon , W. H. and McShan , W. H. 1962 . Gonadotropic activity of chicken pituitary glands . Endocrinology , 71 : 487 – 491 .
- International Committee on Biological Standards . 1964 . Bull. Wld Hlth Org. Techn. Rep. Ser. , : 293
- Lunenfeld , B. , Eskhol , A. , Baldratti , G. and Suchowsky , G. K. 1967 . Preparation and characterization of antiserum to purified gonadotrophins from rat pituitary glands . Acta endocr. Copenh. , 54 : 311 – 327 .
- Nelson , D. M. , Norton , H. W. and Nalbandov , A. V. 1965 . Changes in hypophysial and plasma LH levels during the laying cycle of the hen . Endocrinology , 77 : 889 – 896 .
- Parlow , A. F. 1961 . “ Bioassay of pituitary luteinizing hormone by depletion of ovarian ascorbic acid ” . In Human Pituitary Gonadotrophins, , Edited by: Albert , A. 300 – 310 . Springfield, Illinois : Charles C. Thomas .
- Steelman , S. and Pohley , F. H. 1953 . Assay of the follicle stimulating hormone based on the augmentation with human chorionic gonadotrophin . Endocrinology , 53 : 604 – 616 .
- Stockell‐Hartree , A. and Cunningham , F. J. 1969 . Purification of chicken pituitary follicle‐stimulating hormone and luteinizing hormone . J. Endocr. , 43 : 609 – 616 .
- Van Tienhoven , A. 1961 . “ Endocrinology of reproduction in birds ” . In Sex and internal secretions , 3rd edit. , Edited by: Young , W. C. vol. 11 , 1088 – 1169 . Baltimore : The Williams and Wilkins Co. .
- Wells , M. , Khosla , T. and Brown , P. S. 1964 . An investigation of the assay of gonadotrophin by the induction of ovulation in immature mice . J. Endocr. , 29 : 311 – 322 .
- Witschi , E. 1955 . Vertebrate gonadotrophins . Mem. Soc. Endocr. , 4 : 149 – 163 .
- Zarrow , M. X. , Caldwell , A. L. , Hafez , E. S. E. and Pincus , G. 1958 . Superovulation in the immature rat as a possible assay for LH and HCG . Endocrinology , 63 : 748 – 758 .
- Present address: Department of Physiology, National Institute for Research in Dairying, Shinfield, Reading, Berks.