Add punctuation: Douce writes executed in a style perhaps nowhere else to be met with and Douce is right for when wrote this in 1833 it would still take another century for this expressionistic style to come into fashion
A: Douce writes: " executed in a style perhaps nowhere else to be met with ", and Douce is right, for when wrote this in 1833, it would still take another century for this expressionistic style to come into fashion.

Add punctuation: Several Extension Pipes can be screwed together An Extension Pipe has a length of 24 cm
A: Several Extension Pipes can be screwed together. An Extension Pipe has a length of 24 cm....

Add punctuation: Seiji Kato and his associates at the Langley Center of NASA published in 2006 the results of an investigation of the effect of decreasing sea ice in the Arctic on the amount of radiant energy reflected from the Arctic
A:
Seiji Kato and his associates at the Langley Center of NASA published in 2006 the results of an investigation of the effect of decreasing sea ice in the Arctic on the amount of radiant energy reflected from the Arctic.