Slide showing the 'view of internal anatomy of Buthus'. Slide shows black and white line drawing of 'Buthus' from side view. Diagram illustrates the 'disgestive, circulatory, respiratory and nervous systems (from Leuckart after Newport and Blanchard)'. Labelled parts include: '1. Chelicerae; 2. pedipalpi; 3-6. ambulatory limbs; 7. pectines; 8. mesonteron; 9. lobules of liver with ducts entering mesonteron; 10. malpighiam tubules, portions of; 11. proctodaeum; 12. anus; 13i-13iv. lung sacs; 14. heart; 15. posterior aorta. 16. anterior aorta; 17. brain; 18. median eyes; 19 (above) lateral eyes; 19 (below) nerve cord; 20. poison gland'. Late 19th - early 20th century