Cretaceous Plant Ophioglossum gramilatum , Heer. 907 
true knowledge in every way. It is no solution to call every leaf, as some 
conscientious workers do, ‘ Phyllites ’: different things, however doubtful, 
must have distinct names, and the use of Gothic characters for the very 
doubtful ones would greatly tend to ‘ create confidence * in the science of 
palaeobotany. 
The observations on the specimens in New York were made while 
travelling in America on a tour which was partly aided by a grant from the 
Royal Society, to whose help and encouragement I am much indebted. 
