EDITORIAL. 
515 
dividuals to begin with, no deterioration would result from in 
and in breeding. It was our good fortune to see the very large 
number of extraordinarily fine specimens of guinea pigs that Dr. 
Schroeder had produced from one male and one female in the 
beginning. Perhaps some one will discuss “ in and in ” breeding 
in a future issue, and some one else will explain why the breeders 
of Clydesdales in Scotland run into white to excess and smallness 
of bone, when our correspondent on this side of the Atlantic is 
able to avoid it by careful selection. Do, perhaps, the Scotch 
breeders fancy that coloring, and in encouraging it, sacrifice what 
is more important; or is it the result of environment? 
Acknowledgments: Alabama Polytechnic Institute and 
College of Veterinary Medicine, Announcement 1912-13; Ala¬ 
bama Live Stock Association—Proceedings of Sixteenth Annual 
Meeting; Circular No. 201, U. S. Dept, of Agr., “ Tuberculosis 
of Hogs," by John R. Mohler and Henry J. Washburn; Re¬ 
search Bulletin No. 24, “ The Diagnosis of Contagious Abortion 
ill Cattle by Means of the Complement Fixation Test,” by 
L. B. Hadley and B. A. Beach, University of Wis., Agr. Exp. 
Station; ‘‘ Blood Cultures—Technic and Indications,” by R. C. 
Longfellow, Toledo Clinical Laboratory and St. John’s Univer¬ 
sity, Toledo; Bulletin No. 131, “Four New Fungus Diseases in 
Iowa,” L. H Pammel and Charlotte M. King, Agr. Exp. Sta., 
Iowa State College of Agriculture; Circular 198, U. S. Dept of 
Agr., B. A. I., “ The Bacterium of Contagious Abortion of Cat¬ 
tle Demonstrated to Occur in Milk”; Bulletin 165, Ky. Agr. 
Exp. Sta., “ Investigations of the Etiology of Contagious Abor¬ 
tion of Cows and Mares,” by Edwin S. Good; Circular No. 21, 
Commonwealth of Pennsylvania, State Live Stock Sanitary 
Board, “ Collecting and Forwarding Milk for Laboratory Exam¬ 
ination,” by C. J. Marshall; Farmer’s Bulletin 481, U. S. Dept. 
Agr., “Concrete Construction on the Live Stock Farm”; An¬ 
nouncement Kansas City Veterinary Colleg-e, 1912-13, and K. C. 
V. C. Bulletin No. 36, June, 1912; Ky. Agr. Exp. Station of the 
State University, “ The Diagnosis of Infectious Abortion in Cat¬ 
tle,” by Frank M. Surface ; Alpha Psi Directory, compiled by H. 
Preston Hoskins, secretary National Council, St. Paul, Minn.; 
Journal of U. S. Cavalry Assn, for July, 1912. 
