162 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



elaborate piece of tissue, in which the threads and fibres were woven 

 together into different configurations, which gave a different colouring to 

 the light as it glanced on the several parts of the surface. Sometimes I 

 considered the whole bed of Tulips, according to the notion of the 

 greatest mathematician and astronomer that ever lived, as a multitude of 

 optic instruments, designed for the separating light into all the various 

 colours of which it is composed." 



