The assignments of error, not being based on exceptions, bring nothing before this court for review. Commonwealth v. Myers, 356 Mass. 343, 346 (1969). Commonwealth v. Underwood, 358 Mass. 506, 507-512 (1970). Commonwealth v. Shaffer, 2 Mass. App. Ct. 658, 665 (1974), S.C. 367 Mass. 508 (1975). Commonwealth v. Kennedy, ante, 218, 223 (1975). None of the alleged errors (assuming they are errors) is of sufficient importance to raise any “substantial risk of a miscarriage of justice.” Commonwealth v. Freeman, 352 Mass. 556, 564 (1967). Commonwealth v. Swenor, ante, 65, 70 (1975). Commonwealth v. Dundon, ante, 200, 203 (1975). Commonwealth v. Kennedy, supra, at 225.

Judgments affirmed.