▁Japan . ▁" For ▁Ts ut ak awa , ▁ultimately ▁water ▁stands ▁in ▁relation ▁to ▁human ity ▁and ▁to ▁life ▁as ▁the ▁great ▁continu ing ▁cycle ▁of ▁all ▁things ," ▁art ▁historian ▁Mar tha ▁Kings bury ▁pointed ▁out . ▁ ▁Begin ning ▁in ▁the ▁ 1 9 6 0 s ▁Ts ut ak awa ▁tra ve led ▁extens ively . ▁In ▁addition ▁to ▁regular ▁tri ps ▁to ▁Japan , ▁he ▁tra ve led ▁throughout ▁Asia , ▁Europe , ▁and ▁Mexico . ▁ ▁Ts ut ak awa ▁designed , ▁built , ▁and ▁installed ▁ 7 5 ▁f ount ains . ▁Most ▁were ▁made ▁of ▁bronze , ▁though ▁he ▁used ▁st ain less ▁steel ▁and ▁al umin um ▁for ▁a ▁few . ▁He ▁often ▁executed ▁two ▁or ▁three ▁f ount ain ▁comm issions ▁a ▁year , ▁all ▁while ▁continu ing ▁to ▁teach ▁at ▁the ▁U ▁of ▁W ▁and ▁purs ue ▁his ▁interests ▁in ▁other ▁art ▁forms . ▁ ▁Later ▁years ▁ ▁In ▁ 1 9 7 6 ▁Ts ut ak awa ▁retired ▁after ▁ 3 4 ▁years ▁of ▁teaching ▁Art ▁and ▁Architecture ▁at ▁the ▁University ▁of ▁Washington . ▁N amed ▁Professor ▁Emer it us , ▁he ▁continued ▁to ▁teach ▁occas ional ▁classes ▁and ▁particip ate ▁in ▁special ▁events ▁at ▁the ▁University . ▁ ▁In ▁ 1 9 7 7 ▁he ▁tra ve led ▁to ▁Nep al , ▁where ▁he ▁at ▁last ▁saw ▁in ▁person ▁the ▁stack ed ▁rocks ▁of ▁the ▁ob os ▁whose ▁forms ▁had ▁for ▁so ▁long ▁influenced ▁his ▁work . ▁He ▁later ▁described