— [296], l. 14, for “R2 – R – 82,” read “R2 – R – g2.”
— [303], art. 299, for “M. Leguire,” read “M. Seguin.”
— [306], l. 2, for “R. R. & G.,” read “R. K. and G.”
— [314], l. 2, for “D. R. Clark,” read “D. K. Clark.”
— [320], l. 1, for “Railroad, three pounds (Pennsylvania),” read “Railroad (Pennsylvania), three pounds.”
— [320], l. 7, for “coal,” read “coke.”
— [331], near bottom, for “The area is, therefore,
| Sides, twice length, etc., | read | “Sides, twice length by height, etc., |
| Back, twice height, etc., | Back, height by width, etc., | |
| Front, twice height, etc., | Front, height by width, etc., | |
| Top, twice length, etc.,” | Top, length by width, etc.” |
— [334], l. 15, for “44.7 lbs.,” read “14.7 lbs.”
— [335], l. 7, for “Railway Mechanics,” read “Railway Machinery.”