2 EARLY ANNALS OF ORNITHOLOGY 
probably to be computed by tens of thousands of years. But 
the bones found in them are not necessarily all of equal 
antiquity. ‘‘ There is no doubt,” writes Mr. Mann, “that 
at the time these mounds were inhabited the topography of 
Britain wes somewhat different from what it is at prcsent. 
The land was sunk some twenty-five to thirty feet lower into 
the sea, but the climate, so far as we can ascertain from 
molluscan and from floral remains, was not materially different 
from the present climatic position.”’* 
In Denmark a number of Solan Goose bones have been 
disinterred, and some in Norway, mixed with the bones of other 
birds, all of which have been described by Dr. Herluf Winge. 
These remains indicate that there may have been 
Gannetriest on the Norwegian and Danish coasts, where also 
for the same reason it is thought possible that the Great Auk 
bred in the Stone Age. 
Prehistoric Drawings of Birds.—Most remarkable are the 
ancient representations of birds, which have been discovered 
by Colonel Willoughby Verner and the Abbé H. Breuil in the 
rock shelves and recesses of caves in southern Spain, where, 
protected alike from wind and weather, they have lain unknown 
yet preserved for thousands of years. These are of the Neo-| 
lithic Age, but the Abbé Breuil has been good enough to furnish 
information of some caves which contain a few figures of birds 
appertaining to the Paleolithic epoch. These he has already 
partly published, in conjunction with Sefior H. Alcalde del Rio 
and Pére Lorenzo Sierra, under the title of “ Les Cavernes de 
ln Région Cantrabrique, Exspagne.”’ At Gargas, in the Upper 
Pyrenees, he is acquainted with a beautiful Paleolithic 
representation of a bird, perhaps a Crane or Heron; and at 
La Vilera de-El Arab, he knows of a Stork; while other figures 
of birds of similar antiquity have been found at Minateda in 
Albacete.{ These singular drawings are in all probability 
*L. M., in litt. 
+ In no English Dictionary is the word Gannetry to be found, yet there 
is no reacon why it should not be considered English, as much as the commonly 
employed terms Rookery, Heronry, and Gullery. They are all names having 
the contracted suffix eyrze or aery, signifying a breeding-place of birds. To 
speak of a ‘‘ Rookery ”’ of Gannets, or a “‘ Rookery ” of Penguins seems very 
inappropriate, 
~ Sce also Reinach’s ‘‘ Répertoire de l’art quaternaire,” p. 23 et seq. 
~ 
