189 pages; 8vo (9.25") 23 cm; Hardcover, black cloth, copper lettering on spine, [viii] + 189 pages, index, 27 scientific papers by various experts, 38 b/w figures, photos, tables, etc, including one very large fold-out table of bird migration 'first arrivals'. ; Topics include: Bird migration. Fungi. Cellulose production. Plants at Mud Lake. Proteid content of wheat. Municipal water supplies in Michigan. Water pollution. Water purification. Meat inspections in disease prevention. More. ; Small chip to rear endpaper. Minimal library marks including vintage bookplate. Small closed tear to fold-out not affecting text. No jacket, as issued.