① memo 20180921 ~ Quay between Mills #2 and #3 ~ Walking the quay (dutch ‘kade’) along the waterway – close to the ‘siphon’ – between Mills #2 and #3 of the quartet of windmills together dewatering (regulate the water level of) the polder west of the village Aarlanderveen (Alphen) – draining the surplus of water into the Old Rhine – last sunday in the Green Heart of Holland .