This section is from the book "How To Train Dogs And Cats", by Frederick H. Erb, Jr. Also available from Amazon: How To Train Dogs And Cats.
Chesapeake Bay dogs are probably the best and most widely known of water dogs. They are as much at home in the water as an otter, and no matter how cold the water is, or how much ice is running, will go anywhere for dead game and retrieve it to you. They will dive after a crippled duck, no matter how deep he goes. They are fine dogs to locate a dead bird at a distance, either on land or water, and never lose a bird when sent out after it. They have a keen scent and are great hunters anywhere you put them.

CHESAPEAKE BAY DOG.
I have handled a great many of them and have always made fine retrievers out of them. They can be broken very easily by the use of my training device. They are of a more of less timid disposition and must be given kind treatment. They are easily put under command of the whistle, will work to the motion of the hand, right or left, obey all commands and secure all game killed.
 
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