25B [Definition of fundamental breah: substantial deprivation of expectation, etc.];

30A [Obligation of seller];

33A [Time for delivery: on date fixed or determinable from contract];

47A [Buyer's right to fix additional period for performance];

49A [Buyer's right to avoid contract: grounds for avoidance];

74A [General rules for measuring damages: loss suffered as consequence of breach];

77A [Obligation to mitigate damages];

79B [Impediments excusing party from liability for damages]