I have spent less time in the arid zone in the last few years than I did
during the 1960's, 1970's and early 1980's. This results from a
progression through age and a career structure which gradually shifted
the emphasis of my work from being essentially field-oriented to
essentially office-hound. When, therefore, I was asked by John
Cloudsley-Thompson to undertake the writing of this hook I hesitated for
two reasons. One reason was that, although I now had access to good
library facilities and kept up with the literature on the arid zones and
their fauna, I was not sure that a sedentary and pleasant life in a
temperate highland island in tropieal Africa would provide a mental
attitude suitable to writing a hook which related to areas where life is
usually nomadie and often extremely disagreeable. The other reason was
that I was uncertain whether I could devote the time necessary to
researehing and writing the hook on top of my professional (which now
specifical- ly excluded research in the arid zones and on camels) and
social (new-found and time-consuming) commitments. In the event I
accepted and the fates were kind to me. By some peculiar combination of
circumstances I was given the opportunity to spend a considerable part
of the first half of 1988 in some of the driest areas of the globe. I
had already visited all of the locations used for the construction of
Fig. 2.