Real estate companies continued to advertise and sell land along newly dug canals. In April 1912—the end of the dry season—reporters from all over the U.S. were given a tour of what had recently been drained, and they returned to their papers and raved about the progress.[36] Land developers sold 20,000 lots in a few months. But as news about the Wright report continued to be negative, land values plummeted, and sales decreased. Developers were sued and arrested for mail fraud when people who had spent their life savings to buy land arrived in south Florida expecting to find a dry parcel of land to build upon and instead found it completely underwater.[37] Advertisements promised land that would yield crops in eight weeks, but for many it took at least as long just to clear. Some burned off the sawgrass or other vegetation only to discover that the underlying peat continued to burn. Animals and tractors used for plowing got mired in the muck and were useless. When the muck dried, it turned to a fine black powder and created dust storms.[38] Settlers encountered rodents, skinks, and biting insects, and faced dangers from mosquitoes, poisonous snakes and alligators. Though at first crops sprouted quickly and lushly, they just as quickly wilted and died, seemingly without reason.[39] It was discovered later that the peat and muck lacked copper and other trace elements. The USDA released a pamphlet in 1915 that declared land along the New River Canal would be too costly to keep drained and fertilized; people in Ft. Lauderdale responded by collecting all of the pamphlets and burning them.[40]