Richard Harper Stretch

• Illustrations of the Zygænidæ & Bombycidæ of North America
• Reports of the Spring Valley hydraulic gold company comprising the Cherokee Flat blue gravel and Spring valley mining and irrigating company's property
• Report upon new species of Zygaenidæ and Bombycidæ collected in portions of California and Arizona during the years 1871, 1872, and 1873