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| 
	 "Township order" is from southwest to northeast. Size of dot
		indicates number of cases reported by a town.
	
	 The towns in the southwest, which were the first to
	report, thus appear at the bottom in this plot: the front hits
	them early in their time series, and they spend proportionally
	more of their time in the "post front" stage, and inform us
	the most about the endemic phase (the right tails).
	
	 The 169 time-series have been shifted to the 
		location of the front (at time 0), as given by the seasonal
		 model of the epidemic front.
	 |  |