Calendar: 1968-1969 Page 459

Annual Report of the Delegacy cxvii Joseph Ά spatially homogeneous gravitational field Proc Camb Phil Soc 62 1966 87-9 Kilmister Language Logic and Mathematics English Universities Press 1967 Kunzle 'Construction of singularity-free spherically symmetric space-time mani- folds Proc Roy Soc Α 297 1967 244-68 Lue -T 'Crossed homomorphism of Lie algebras Proc Camb Phil Soc 62 1966 577-81 'Baer-invariants and extensions relative to variety Proc Camb Phil Soc 63 1967 569-78 Lue -T and Dedecker Ά non-abelian two-dimensional cohomology for associative algebras Bull Amer Math Soc 72 1966 1044-50 Pirani and Deser 'The sign of the gravitational force Ann Phys 43 1967 436-51 Pirani and Schild 'Conformal geometry and the interpretation of the Weyl tensor Per- spectives in Geometry and Relativity essays in honour of Vaclay Hlavaty Indiana University Press 1966 Reeve and Tyrrell 'Intersection theory on singular algebraic surface-addendum Lond Math Soc 41 1966 619-26 Reeve Reviews in Zentralblatt fur Mathematik Editor Lond Math Soc Semple Review in Lond Math Soc Tyrrell 'Lines which trisect the area of given triangle Math Gaz 31 1967 50-1 Reviews in Zentralblattfiir Mathematik FACULTIES OF ARTS AND THEOLOGY DEPARTMENT OF ECCLESIASTICAL HISTORY Collinson The Elizabethan Puritan Movement Jonathan Cape and University of California Press 1967 'Episcopacy and Reform in England in the later sixteenth century Studies in Church History III Brill 1966