50 Mr. Winch on the Distribution of indigenous Plants. 



No. IX. — Remarks on the Distribution of the indigenous Plants of Nor- 

 thumberland and Durham, as connected with the Geological Structure of 

 those Counties. By Nat. John Winch. 



Read April 20, 1830. 



Of late years, some of the continental botanists have added to their 

 Floras a geographical distribution of plants, and whoever has attentive- 

 ly perused the works of Wahlenberg, on the vegetable productions of 

 Lapland, Sweden, Switzerland, and the Carpathian mountains, cannot 

 fail to approve of the plan. In our own country another step has been 

 taken to render the study of Botany more attractive and useful, by com- 

 bining it with Geology ; and an essay of considerable merit, drawn up 

 for this object, forms a part of the preface of a well- written and amusing 

 Flora, lately published by one of our associates. Dr. G. Johnston, 

 of Berwick.* Mr. Hogg, of Peterhouse, Cambridge, had previously 

 adopted a similar mode of illustrating this department of the Natural 

 History of the vicinity of Stockton upon Tees, in an interesting tract 

 appended to Brewster's History of that place, and a preface of the 

 same purport serves as an introduction to Jones' and Kingston's Flora 

 Devoniensis. After citing these authorities, I trust no further apology 

 will be deemed necessary, for submitting to the Society the following 

 remarks, which are intended to throw a small degree of light on two 

 branches of the Natural History of this district. The notices offer- 

 ed, I allow, are as brief as perspicuity will admit, and the sketches 

 slight ; but at some future period, I trust it may be in my power to fill 

 up the outline by details, useful in a practical point of view to natural- 

 ists, who may make the North of England the field of their botanical 



* A Flora of Berwick upon Tweed, 2 vols. 12mo. by George Johnston, M.D., &c.&c. 



