CHAPTER TWENTY-NINE, in which Huck saves the widow

CHAPTER TWENTY-NINE on Project Gutenberg

Tom convinces Becky to visit the Widow with the prospect of ice cream, an especially delicious treat during the hot and humid Missouri summer. 

Your mission for this chapter:  Using the website below, answer the following question.  Who came up with the first ice cream machine? (Bonus: When was the waffle cone introduced?)

Website: http://www.foodnetwork.com/videos/ice-cream-history-and-trivia/12983.html