Moreover, as the first
edition of this book found many readers in other countries, in several of
which there is greater scope for the use of acetylene, it has been
decided to describe also a few typical or widely used foreign generators.
All the generators described must stand or fall on their merits, which
cannot be affected by any opinion expressed by the authors. In the
descriptions, which in the first instance have generally been furnished
by the manufacturers of the apparatus, no attempt has therefore been made
to appraise the particular generators, and comparisons and eulogistic
comments have been excluded. The descriptions, however, would
nevertheless have been somewhat out of place in the body of this book;
they have therefore been relegated to a special Appendix. It has, of
course, been impossible to include the generators of all even of the
English manufacturers, and doubtless many trustworthy ones have remained
unnoticed. Many firms also make other types of generators in addition to
those described. It must not be assumed that because a particular make of
generator is not mentioned it is necessarily faulty. The apparatus
described may be regarded as typical or well known, and workable, but it
is not by reason of its inclusion vouched for in any other respect by the
authors.
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