The fresh-water fishes of Europe. A history of their genera, species, structure, habits, and distribution Q Science
Solubilities of inorganic and organic substances; a handbook of the most reliable quantitative solubility determinations Q Science
The spirit of nature study; a book of social suggestion and sympathy for all who love or teach nature Q Science
Selection and cross-breeding in relation to the inheritance of coat-pigments and coat-patterns in rats and guinea-pigs Q Science
Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe Q Science
Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe Q Science
