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I. The object of the Watson Botanical Exchange Club is 

 to promote more intercourse, help, and exchange between 

 working botanists, and particularly with regard to critical 

 species. 



2. The subscription is 2s. 6d. a year, and will be used to 

 defray the expenses of printing, postage, &c. Any surplus 

 will be devoted to increase the work of the club. 



3. Members may send to the Secretary, before the 31st of 

 January each year, parcels of plants for distribution, and 

 they will receive in return plants in proportion to the 

 number sent. Several specimens of each plant should be 

 sent, and they should be good specimens. Each must have 

 a label giving the name, place where collected, collector's 

 name, and date. Scraps are of no use. 



4. Members will very much increase the scope and work 

 of the club if they will send for examination any Batrachian 

 Ranunculi, Rosas, Rubi, Callitriches,Hieracia,Potamogetons, 

 Salices, Menthas, Junci, Carices, Charas, &c., — the study of 

 critical species being one of the principal aims of the club. 

 One specimen of each will be returned to the owner with the 

 corrected name. When Hieracia are sent up for examination 

 the colour of the styles should be stated on the label. 



5. No foreign or cultivated plants to be sent unless asked 

 for. 



6. Each member must let the Secretary have a London 

 Catalogue of British Plants with a mark against his desiderata. 

 These Catalogues should accompany the parcels. They will 

 be returned in the return parcel. No MS. lists to be sent. 



