x INTRODUCTION. 



ently with utility ; and our great aim has been to quote 

 those authors who have given the first name to the 

 species, and those who have given the first-good figure 

 of it. 



We have referred with much pleasure to a valuable 

 work published at Strasburgh, consisting of dried speci- 

 mens of cryptogamic plants, and entitled Stirpes Crypto* 

 garnet J/^ogeso-RhenanfE, auctoribns Mougeot et Nest" 

 ler. We regret that the work is so little known in this 

 country ; but we trust that this loss will be in some mea- 

 sure compensated by a similar one of the Musci and 

 Hepaticse of our own country, which will be published 

 by Mr. Hobson of Manchester, to whom the Musco- 

 logy of this country is much indebted. It will readily 

 be seen how much superior these works must be in point 

 of accuracy to the best of plates, and they have also the 

 advantage of being vended to the public at a much 

 cheaper rate. 



