The Mysterious Affair at Styles by Agatha Christie

The medical evidence was next taken. There was a breathless hush, and every eye was fixed on the famous London specialist, who was known to be one of the greatest authorities of the day on the subject of toxicology.

The Colors of Space by Marion Zimmer Bradley

One by one he picked out the constellations. Aldebaran swung on the pendant chain of Taurus like a giant ruby. Orion strode across the sky, a swirling nebula at his belt. Vega burned, cobalt blue, in the heart of the Lyre.