EDITOR’S PREFACE. 
11. 
Winter, B.Sc., Government Geological Surveyor, lias tlius supplied me 
with certain foot-notes (E.E.W.) relative to the geology and miner- 
alogy; Dr. F. G. Rose, Government Bacteriologist, lias similarly given 
me valuable information (F.G.R. ) with regard to Medicine and Sanita- 
tion, while Mr. James Rodway, F.L.S., the Curator of the Museum and 
our Colony's Historian (J..R.) has made many a sacrifice of time, 
labour and patience in searching up the latest references to the natural 
history and antiquities. 
I have also to thank my son, Mr. Vincent Roth, Warden and Govern- 
ment Surveyor at Arakaka, for drawing the maps and for the thankless 
task of typing the whole MSS. for the printer. Strange to say, the great- 
est portion of the typing was done in his boat whilst travelling, or at 
night in camp, often to the huge wonder, and occasionally to the terror 
•of unsophisticated Indians who had never seen a typewriter before: 
many of them descendants of those actually described in the subject 
matter. 
Unfortunately, on account of the alterations in the limits of the 
colony as a result of the Boundary Commission, as well as owing to the 
omissions and orthographical errors in the most recent (1913) Official 
map, it is impossible to follow the large majority of Schomburgk’s Travels 
on it, while the Official map of 1875 is out of print. The original spellings 
of the names as given in the Travels, etc., and 1875 map are accordingly 
retained, their modern equivalents, if marked at all in the 1913 map, — 
over fifty per cent, have been omitted — being shown in the Geographical 
Index which has been inserted on the (Suggestion of Hon. C. dementi. 
The charts illustrating the respective journeys have been drawn from the 
latter map with which so far as physiography is concerned, fault can 
perhaps only be found in its mapping of the far western area. 
Mr. S. M. Loquan, our well-known local photographer, has very 
kindly supplied me with the negatives of the original illustrations. 
For a succinct account of the labours of the brothers Sehomburgk, I 
would refer the reader to the very interesting and instructive article 
“The Schomburgks in Guiana” by Mr. James Rodwav, F.L.S., published 
an Timehri Vol. TIT., New Series 1889. 
Georgetown, 
July, 1920. 
WALTER E. ROTH. 
