44 THE ORNITHOLOGISTS’ AND OoLocists’ SemI-ANNUAL. 
these papers, and they will appear in future issues of the O. & O. 
Semi-ANNUAL. The object of these papers is to awaken an interest 
in Ornithology and Oology in Texas, and as they will contain a list 
of all the birds which pass through Texas as well as those that re- 
main there, giving a brief description of each, their habits, etc., they 
will be of considerable interest to our readers, especially those resid- 
ing in Texas. After the completion of the papers, Mr. Rachford 
proposes to publish them in pamphlet form. We will furnish our 
readers with copies as low, if not lower than they can be procured 
elsewhere. Ep. | 
BRAINS OF BIRDS. 
Mr. Park has kept a complete record of the weight of the brains 
of the birds mounted by him, and of the principal parts of the brain 
and the eyes. The following table shows approximately the relative 
weight of the brains of birds to the entire weight of the birds of the 
families found in the vicinity of Troy : 
NAME OF FAMILY. WEIGHT OF BRAIN. WEIGHT OF BIRD. 
Grebes, I to 230 
Gulls, I to 155 
Terns, I to 72 
Petrels, I to 78 
Ducks, I to 165 
Bitterns and Herons, 1 to 138 
Coots, i to 167 
Phalaropes, i to 61 
Snipes and Sandpipers, 1 to 75 
Plover, I to 67 
Grouse and Partridges, (including 
Prairie Hens) I to 240 
Hawks, I to 86 
Owls, I to 56 
Cuckoos, I to 59 
Kingfishers, I to a 
Woodpeckers, I to 34 
Hummingbirds, I to 30 
