Prompt
Create a realistic portrait of Charles Frederick Chandler, a middle-aged man from the late 19th and early 20th centuries, dressed in formal attire, possibly with a suit and tie, and a slight smile. He should be seated in a study or office setting, with books and scientific equipment in the background, symbolizing his work as a chemist and educator. Incorporate subtle hints of his contributions, such as a water treatment diagram or a book on food safety, to reflect his impact on public health and chemical education. The style should be reminiscent of formal portraits from the era, with attention to detail and a sense of gravitas.