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

49A1 ; 49B [Buyer's right to avoid contract (grounds for avoidance): fundamental breach of contract; Buyer's loss of right to declare avoidance after delivery: failure to make timely avoidance];

74A [General rules for measuring damages (general rules for measuring): includes loss of interest];

78B [Rate of interest]