509 
The II. chapter of the Introduction (21 pg. with 2 maps) treats the Seasons and 
Winds in the whole East Indian Archipelago, viz. the four Monsoons, the Rains north 
and south of the equator, the Change of Climate at different altitudes. Then follows a 
more detailed description of the seasons of the different islands of the Aichipelago: of Ce- 
lebes, Sangi, the Sooloo Archipelago and the Celebes Sea, the Philippine Islands, Borneo, 
Sumatra, Java, New Guinea, the Solomon Islands etc. -- The importance of this chapter 
lies in the fact that winds and seasons play not a small part among the many causes, 
which effect the dispers al and the distribution of birds. 
The III. chapter, Migration in the East Indian Archipelago (15 pg.), contains: Mi- 
grations in its simplest form, Local movements, Islet nomads, Migrations proper in the 
E. I. Archipelago, Table of migrants to Celebes, Birds at sea, Eoutes of different species 
to the East Indies, Causes of migration etc. 
In the IV. chapter (28 pg.) 'Variation' or modification of structure and plumage 
displayed among the birds of Celebes is treated under 5 headings : Individual Variation 
(differences peculiar to the individual). Geographica! Variation (as shown by local races 
subspecies or species). Seasonal changes (summer and winter plumagesi, Sexual differences, 
Changes dependirtg upon age. 
Chapter V: Geographica! Distribution (50 pg. with 3 maps) begins with the ques- 
tion on the frontier between the vastly different Oriental (Asiatic) and the Australasian 
faunas and floras, which must be drawn somewhere in the Archipelago. 'Wallace's line' 
and the opinions of 36 zoologists upon it. Table of the geographica! Distribution of the 
Birds of the Celebesian Area. Peculiar genera and species of Celebes, with table sho- 
wing the estimated value of their affinities, List of the Birds of the Sangi, of the Talaut 
of the Pehng, of the Sula, of the Saleyer, of the Djampea, of the Togian Islands, and 
the conclusions drawn from the geographica! distribution of the species. — Result: Celebes 
belongs to the Oriental region and not to the Australian; it is most appropriate to adopt 
a Transition-Zone between these two regions comprising, a Celebesian area. 
The 43 coloured Plates 
represent 77 species, none of which have as yet been figured. 3 of the figures 
are species of the order Accipitros, 1 Strix, 3 Psittaci, 6 Coraciae, 3 Macro- 
chires, 47 Passeres, 6 Columbae, 2 Gallinae, 4 Ralli, 2 Ciconiiformes. The 
Plates have been drawn after the original specimens and are coloured by band 
by the well known artist Bruno Geis sie r of the Dresden Museum. 
After more then 6 years' incessant labour of both authors this grand work has at 
last been completed. 
The authors could avail themselves not only of the rieh collections of the Dresden 
Museum, but also of the recent ornithological results obtained by the Drs. P. and F. 
Sarasin and many other travellers. The 'Birds of Celebes' thus form a western continuatiou 
of Count T. Salvadori's famous «Ornitologia della Papuasia e delle Molucche» [For 
particulars on that book — see: Bericht über die Verlagsthätigkeit von R. Friedländer & Sohn, 
nr. 1922]. - 
We need not dwel! upon the scientific value of Meyer- Wiglesworth's work. For the 
Explorer in the East Indian Archipelago, for the Zoologist devoted to the problems of animal 
distribution and Variation, for every serious Ornithologist it will be simply indispensable. 
As to the plates the name of the draughtsman and painter is sufficient to guarantee 
their perfection, and every possible pain in their execution has been taken to render 
them truthful. 
Sold separately: 
The Introduction. XXXII and 130 pages, in Royal-Quarto. M. 20, — 
List of Contents — see above. 
