442 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



equal to 70,000 standard candles; but, if revolving, be equal 

 to 873,000 candles. Elliots Light-house System,]). 169. 



PRICE OF BURNING-GAS. 



The following figures show the net price of illuminating- 

 gas throughout the United States in 1875, upon the author- 

 ity of the Washington, D. C, Gaslight Company: 



Mississippi $5 25 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 



Maine $3 87 



New Hampshire 3 96 



Vermont 4 



Massachusetts 3 



Rhode Island 3 



Connecticut 4 03 



New York 3 



New Jersey 3 



80 

 86 



35 



88 

 80 



Pennsylvania 3 46 



Delaware 3 95 



Maryland 3 59 



District of Columbia 3 16 



Virginia 3 89 



West Virginia 3 11 



North Carolina 6 67 



South Carolina 3 80 



Georgia 5 07 



Florida 8 00 



Alabama 4 83 



20, 



21. Wisconsin 3 87 



22. Michigan 3 43 



23. Ohio 3 32 



24. Indiana 3 54 



25. Illinois 3 87 



26. Kentucky 3 92 



27. Tennessee 4 06 



28. Minnesota 4 31 



29. Iowa 4 52 



30. Missouri 3 95 



31. Arkansas 5 00 



32. Louisiana 4 50 



33. Texas 5 75 



34. Kansas 4 55 



35. Colorado 5 00 



36. Utah 4 00 



37. California 6 11 



Total average net price of gas in the United States, $4 32^- 

 per 1000 cubic feet. 



A NEW LIGHT. 



According to The Athenaeum, Mr. Spiller has succeeded in 

 producing a light far better than that from nitro-oxide and 

 the bisulphide of carbon, and free from its dangers. This is 

 accomplished by dropping small pieces of brimstone into 

 fused saltpetre, in a glass tube. 15 A, Jan. 30, 1875, 166. 



TREATMENT OF NEW WOODEN UTENSILS, ETC. 



Wooden vessels for containing articles of food, wine, etc., 

 also wooden vessels for culinary purposes, can be rendered 

 fit for immediate use, as to the removal of the unpleasant ex- 

 tractive matters, by treatment with a solution of washing- 

 soda. Thus an ordinary barrel should be filled half full of 

 water, and a solution of about two pounds of soda in as much 



