References
- Heyn , A. N. J. 1963 . The crystalline structure of calcium carbonate in the avian egg shell . J. Ulstrastruct. Res. , 8 : 176 – 188 .
- Petersen , J. and Tyler , C. 1966 . The strength of Guinea Fowl (Numida meleagris) egg shells . Br. Poult. Sci. , 7 : 291 – 296 .
- Simkiss , K. and Tyler , C. 1957 . A histochemical study of the organic matrix of hen egg shells . Q. Jl microsc. Set. , 98 : 19 – 28 .
- Tyler , G. 1964 . A study of the egg shells of the Anatidae . Proc. zool. Soc. Lond. , 142 : 547 – 583 .
- Tyler , C. and Coundon , J. R. 1965 . Apparatus for measuring shell strength by crushing, piercing or snapping . Br. Poult. Sci. , 6 : 327 – 330 .
- Tyler , C. and Geake , F. H. 1953 . Studies on egg shells. I. The determination of membrane‐, pore‐and matrix‐protein . J. Sci. Fd Agric. , 4 : 261 – 266 .
- Tyler , G. and Geake , F. H. 1960 . Studies on egg shells. XIII. Influence of individuality, breed, season and age on certain characteristics of egg shells . J. Sci. Fd Agric , 11 : 535 – 457 .
- Tyler , C. and Geake , F. H. 1963 . A study of various impact and crushing methods used for measuring shell strength . Br. Poult. Sci. , 4 : 49 – 61 .
- Tyler , C. and Geake , F. H. 1964a . Egg shell strength and its relationship to thickness, with particular reference to individuality in the domestic hen . Br. Poult. Sci. , 5 : 3 – 18 .
- Tyler , C. and Geake , F. H. 1964b . The testing of methods for cracking egg shells, based on paired readings from individual eggs and the measurement of some effects of various treatments . Br. Poult. Sci. , 5 : 19 – 28 .
- Tyler , C. and Geake , F. H. 1964c . The testing of methods for crushing egg shells, based on paired readings from individual eggs and the measurement of some effects of various treatments . Br. Poult. Sci. , 5 : 29 – 35 .
- Tyler , C. and Geake , F. H. 1964d . A direct comparison of certain cracking and crushing methods used for measuring shell strength . Br. Poult. Sci. , 5 : 37 – 43 .
- Tyler , C. and Geake , F. H. 1964e . The effect of water on egg shell strength including a study of translucent areas of the shell . Br. Poult. Sci. , 5 : 277 – 284 .
- Tyler , C. and Simkiss , K. 1958 . Studies on egg shells. VIII. The determination of membrane‐, pore‐ and matrix‐protein—a reassessment . J. Sci. Fd Agric. , 9 : 375 – 380 .
- Tyler , C. and Thomas , H. P. 1966 . A study of the snapping strength of egg shells and the effect of various factors on it . Br. Poult. Sci. , 7 : 227 – 238 .
- Present address: Instituut voor de Pluimveeteelt, “ Het Spelderholt “, Beekbergen, The Netherlands.