26A [Notification of avoidance (effective declaration of avoidance): buyer's offer to make restitution of the goods an unmistakable declaration of intention to avoid the contract];

35B [Conformity of goods to contract (requirements imposed by law): fitness for ordinary use (of average quality vs. just merchantable); conformity to a model]);

49A [Buyer's right to avoid contract (grounds for avoidance): fundamental breach of contract];

51A [Non-conformity of part of goods];

71A1 [Grounds for suspension of performance];

77A [Obligation to take reasonable measures to mitigate damages: announcement to try to resell non-conforming goods an attempt to mitigate damages, not a waiver of right to rely on lack of conformity]