## Philosophical Transactions: Physical sciences and engineering, Volume 254 |

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### Contents

Communicated by A E Green F R S Received 28 July 1960Revised 11 January 1961 | 2 |

Detailed theoretical analysis | 16 |

equations for the various plastic regimes but it is noteworthy that real families of characteristics | 23 |

15 other sections not shown

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### Common terms and phrases

0-injective abelian abelian category adjoint functors anisotropic approximation axis Carboniferous co-ordinates coefficients commutative commutative diagram complex morphism components constant corresponding covariant covariant functor cube curve Dalradian defined denote density derived functors determined diagram dipole disks E-functor electronic element energy epimorphism equation error exact couple experimental Ext1 figure film thickness frictional function functors galena Geol given granite graphite Hence Hercynian Horn induced injectives invariant irradiation isomorphic isotope lead isotope lemma measurements mercury mineralization model age molecule monomials monomorphism natural transformation obtained Ordovician Oughterard parameters particles Pi Pi Pi plane plastic regimes pressure zone proposition ratio reactor resolution rocks ruled surface sample sequence shown shows Silurian simple extension sliding specimens spectra sublattices sufficient surface symmetric temperature tensor theorem theory thorium values vanishes vein velocity field vibrational vibronic viscosity waves zero zero morphism