108 DDT— Killer of Killers 



showed a 99% reduction in the fly population even 30 days 

 after treatment. 



An Island Paradise 



Out in Lake Huron, off the northern tip of the lower 

 peninsula of Michigan, lies Mackinac Island, a delightful 

 spot where the cool lake breezes keep the temperature down 

 to reasonable levels during the summer months when folks 

 swelter in their city homes. It is no wonder, then, that 

 Mackinac Island has been a noted summer resort for many 

 years. The island is rather large, and vacationers at resort 

 hotels don't like to walk. In the days when Mackinac Island 

 first became a summer resort, the horse and carriage were the 

 fashionable means of transportation over short distances, and 

 horses and carriages became as much a part of the island 

 scene as the fat dowagers who eased their broad posteriors into 

 chairs on the hotel's veranda. 



A few hundred miles to the south of Mackinac Island, 

 in a city called Detroit, a new mode of transportation was 

 perfected, and the product of Henry Ford and others could 

 soon be found in practically every remote corner of the earth 

 — but not on Mackinac Island. The proprietors of the re- 

 sorts decided that the exhaust of motor cars would not be 

 allowed to contaminate the pure lake air, and that the soft 

 neighing of the horse was preferable to the noise of the 

 horseless carriage. So today when you step off the steamer 

 at the dock, you will be met, as were your parents and grand- 

 parents, by a line of horses and carriages to transport you to 

 your destination. 



But life on Mackinac Island has not been entirely a bed 

 of roses, for the penalty for retaining the horse has been a 



