24 Account of Mr Forrest's New Percussion Lock. 
tic prosperity. Being particularly addicted to Horticulture, he 
left a set of manuscript prelections on this art ; and also wrote 
the text of a Swedish periodical work, intended to promote its 
practice {Magazin for Blomstcr-alskare och Jokare af Trad- 
gaards skdtselen , utgifvet af Pfeiffer , Venus och Ruckmann , 
1806, 12 Hcften.) Lastly, he inserted various remarks on the 
diseases of plants, and others on useful culinary vegetables, in 
another periodical work, some of which were translated from the 
German and French languages, (Landtbruks Acad. Annaler, 
1814, 1815, 1816.) 
The liberality of this excellent man, free from all jealousy or 
envy, is celebrated by every one who had any dealings with him 
in a literary way : with the same benevolence, he transmitted to 
his friends the rarest plants, as well as the most excellent re- 
marks written by himself. 
Some of these, containing species of mosses, lie with Weber 
of Kiel, others, on new mosses, in the cabinet of Schrader , at 
Gottingen, and others, illustrative of American lichens, in that 
of Sturm , at Nuremberg. 
To this illustrious botanist, Schreber first dedicated the Tou - 
natea of Aublet, which he considered as generically different 
from the Possira of the same author, giving to this latter the 
name of Ritter a. But, it being shewn by Vahl , that they in 
reality form only one gexus, Willdenow retained the name of 
Swailtzia. It is a genus of South American trees, belonging 
to Polyandria ; but whose natural affinities are not yet well un- 
derstood, unless, perhaps, it be related to Schreber’s Dimorpha , 
and to Cyclas , and be thus referable to the Leguminosa . The 
genus of mosses to which Hedwig gave the name of Swartzia , 
was afterwards named by him Cynontodium. 
Art. III . — Account f a New Percussion Lock , by Mr George 
Forrest, Gunsmith, Jedburgh. In a Letter from Mr 
Lizars to Dr Brewster. 
Dear Sir, 
X beg leave to send you a sketch* and description of an im- 
proved Percussion Lock by Mr George Forrest, gunmaker, Jed- 
