The beginnings of his doctrine of cellular pathology date from the earliest period in his career.
It was used by him in his earliest observations of double stars (1779-1783); but, even in his hands, the measurements were comparatively crude, because of the difficulties he had to encounter from the want of a parallactic mounting.
- The earliest Presbyterian emigration consisted of French Huguenots under the auspices of Admiral Coligny, led to Port Royal, South Carolina, by Jean Ribaut in 1562, and to Florida (near the present St Augustine) by Rene de Laudonniere in 1564, and by Ribaut in 1565.
The Cinque Ports from the earliest times claimed to be exempt from the jurisdiction of the admiral of England.
He found the light of the sun to be 300 times more intense than that of the moon, and thus made some of the earliest measurements in photometry.