Dissertatio, hypotheses quasdam, de caussa electricitatis, perstringens, cujus partem posteriorem, cons. ampl. fac. phil. in illustri ad Auram lyceo, praeside mag. Andrea Planman, phys. professore reg. & ord. nec non Reg. Acad. Scient. Stockholm. Socio, pro gradu publico examini subjicit Gustavus Polviander, Satacundensis, in auditorio majori die XVII. Julii anni MDCCLXXII. t.p.m.s.1.1.1772