Thanks for posting. Interesting to watch. At first I thought the water man was carrying drinking water into town using his Water Cart, before the times of general availability of running drinking water. But than I realized he is using the cart to sprinkle water on the road, see behind the cart. Guess the unpaved roads needed attention during dry summer months in London... although that slightly conflicts with the remark of the next picture "the smooth pavements of the streets have successfully competed with the placid current of the Thames"