sentences:  After Larz died in 1937, Isabel donated thirty of these miniature trees to the Arnold Arboretum of Harvard University along with the funds necessary to build a shade house for their display.When she died in 1948, the remaining nine plants in her possession were donated to the Arboretum including an 80-year-old Hinoki Cypress that had been given to the Andersons by the Imperial Household shortly before they left Japan for the last time.Arboretum staff did their best given their limited knowledge of the art of bonsai, but the Larz Anderson Collection suffered from the lack of expert skills needed to keep the fragile trees healthy.