New naphthalene-sulfur compounds, oligomers of poly (l,4-naphthylene sulfide), have been synthesized and studied by electronic and vibrational spectroscopy in both pristine and oxidized forms. It has been found that the charged defects induced on these molecules are Much More stable than in the corresponding 1,4-phenylene derivatives. Nevertheless their physical properties are strongly affected by steric effects which hinder a regular arrangement of the repeating units.

Photoinduced absorption spectra of poly(1-N-carbazolyl-penta-1,3.diyne-5-acetoxy) show absorption peaks which depend on the sample preparation and on the temperature. The low temperature spectra show two well resolved absorptions centered at ∼0.5 and ∼1.2 eV respectively. In view of other experimental results on these systems, we have interpreted our data as evidence of charged bipolarons stabilized by interchain interactions.

The A. explains the case of a pair of male twins five month aged, contemporaneously and suddenly died of a cardiac insufficiency from hyperthymism.

The examination of both their parents permitted to assure a syphilitic inherited lemish in their children.

Considering the question from the medico-legal standpoint, he does not justify any suspicion of a criminal action when the event may be justificable under the acquaintance of gemellology.

He confirms, besides, reflecting upon the genealogic factors of the parent's families, the theory of Gedda on the hereditary mechanism of gemellogenesis which in the above mentioned case declares itself as an heredity jointed to the sex.