Technical paper . O <* J^ I*— 9 <f— 1—«9f± ^% •*. ill ?^ o 2V ft-S 2 <s ? •? S. W g - • I- 9 B S .a 2 1 2 w : .= o T3 0 w 53 CO .5 M R H — & = w 8 43 p 3 o - a a gj tf a ii a) -- a W O | s o c a — A c ~ z r? — a .- - — .§ s ma ; *- ._J O GO tuOC ft C M to A = d c 3 ,2 - o .5 35 ?~ fc t «© ^ o - ID M s ; 03 S ox q p - T3 m o - o 1 i - —a 1 0 - q o y{ £ T) i 3 s H t- a c iC +a X CJ * .c 1 — s a 1 c cc d s 1 * X EXPERIMENTS WITH INCOMPLETELY BURNING FIRES. 33

---

Size: 1352px × 1848px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou