If you cannot manage your palette, how are you going to manage your canvas? In Glasgow, Scotland, we visited the University of Glasgow’s Hunterian Art Gallery and discovered a treasure trove: The Whistler Collection. Upon James McNeill Whistler’s death in 1903 (b. 1834), most of his work went to his sister-in-law, Rosalind Birnie Philip (1873-1958), who had been Whistler’s companion and assistant since the death of Whistler’s wife Beatrix (1857-1896). The Whistler Collection includes the contents of his house and studio at the time of his death, including unfinished work and artist’s materials. Rosalind Philip outlived Whistler by 55 years. During those years, she devoted herself to safeguarding Whistler’s reputation. Eventually,…