Hungarian scientist; born Dec. 18, 1859, at Szergeny; studied at Papa, Sopron, and Budapest. In 1882 he received an appointment at the state meteorologic institute, where he made researches into climatology, zoology, and geology. He is now (1904) professor at one of the gymnasiums of Budapest.
Lasz has published the following works: "A Vulkánizmuszról" (Budapest, 1883), on volcanism; "Szövö-Fonómesterek" (ib. 1885, awarded a prize), on master-spiders; "Egy Átkos Kis Légyröl" (ib. 1894, awarded a prize), on flies; "Lebens- und Charakterbild des Dr. Ludwig Lewis" (ib. 1883).
- Kiszlingstein, Könyvészet;
- Szinnyei, Magyar Irók;
- Pallas Lex.