From any point in eMuseum, you can initiate a simple search by entering a word or phrase in the box at the top of the main navigation bar (at left), and then by clicking on the "go" button. For example, you can enter a person's name, a title of a work of art, a date, or any other search term, and eMuseum will find all instances of it and return the results to you.
For further search options, click on the "Advanced Search" button.