Seliwanow. Litteratur. 293 Peenet. Procedes thermometriques. 64. sess. soc. Helv. sc. nat. Fri bourg 1891. [Arch. sc. phys. (3) 26, 479f. C. E. Guillaume. Modern ideas on thermometry. Bev. gener. sc. pures et appliquees 2, Nr. 3, 1891. [Chem. News 63, 189, 1891 f. D. Mazotto. Una modificazione al termometro ad aria. Cim. (3) 29, 142—147. C. Dufoue. Sur un thermometre hypsometrique de Walfeedin. 64. sess. soc. Helv. sc. nat. Fribourg 1891. [Arch. sc. phys. (3) 26, 480 —481. W. C. Robeets- Austen. Certain pyrometric measurements and methods of recording them. Bep. Brit. Ass. Cardiff 1891, 607. Nur Titel. E. L. Nichols und B. W. Snow. Anwendung der Elektricität zu Temperaturmessungen. Elektrot. ZS. 12, 625. — — Nouveau thermometre electrique. Lum. electr. 39, 426—427. — Contraction of zinc. Engin. 51, 441. Glich.