188 
POPULAR SCIENCE REVIEW. 
EXPLANATION OF PLATE XCVIII. 
Fig. 1. Austrian Torpedo, 1866. Wooden Case. 
,, 2. Austrian Torpedo, 1866. Iron Case. 
„ 3. Mooring Catch. 
„ 4. Sketch illustrating Action of a Current on Torpedoes with 
Single Moorings. A, Theoretical Position of Torpedo ; 
B, Actual Position. 
„ 5 . Platinum Wire-fuze. Section. 
„ 6. Von Ehner’s High-tension Fuze. Section. 
„ 7. Beardslee’s High-tension Fuze. Section, 
j, 8. Mathieson’s Circuit-closer. Section. 
„ 9. Hooper’s Insulated Electrical Cable j ^ of full size ; strongest 
pattern. 
„ 10. Firing-key. 
„ 11. Sketch showing Course of Voltaic Current, and Method of 
Firing Torpedoes. 
„ 12. Defence of a Kiver Mouth. Firing Torpedoes by Cross- 
bearings, 
