720 



" Information was requested, in the blank forms distributed, on the 

 following points : — 1. The No. and name of the species, in accord- 

 ance with the ' London Catalogue of British Plants.' 2. No. of dis- 

 trict or division. 3. Locality. 4. Soil. 5. Habitat. 6. Aspect 

 (if the plant grows on a slope, north, south, east, or west). 7. No. of 

 stations in which observed. 8. Time of leafing. 9. Time of flower- 

 ing. 10. Observations. From the various returns made, it has been 

 found impracticable to obtain at present all the information required. 

 With a view of supplying in some measure the deficiency, it is con- 

 sidered desirable again to solicit the co-operation of all botanists either 

 resident in or connected with the county, and to furnish them with a 

 detailed description of the divisions, accompanied by an illustrated 

 map, and for the present to limit the information solicited to the mere 

 name of the plant, and the name or number of the district in which it 

 occurs, waiving the notice of soil, aspect, altitude, and times of leafing 

 and flowering. It would be very desirable to ascertain the frequency 

 or abundance of the species generally, by noting the extent which 

 they occupy, viz.^ by stating whether the plant is plentiful or other- 

 wise over a large area, and, again, whether it be rare or plentiful in 

 the few spots where it grows. But information of the presence of 

 absence of a plant in any or all of the districts (so far as known to 

 the contributor) will materially aid the promoters of this undertaking. 



" The appended list of Ranunculaceous plants that have been ascer- 

 tained, by personal inspection, up to the present time as occurring in 

 the county, will show by the blank spaces in which divisions the spe- 

 cies is absent. 



"Any communication which may tend to promote the above-men- 

 tioned object will be received by Mr. J. D. Salmon, of 164 a, Strand, 

 London ; and all communications will be duly acknowledged." 



The President read the following notes, from Mr. J. G. Baker, of 

 Thirsk :— 



Sisymbrium Austriacum. 



" In a vasculum of plants procured for me during the earlier part 

 of the current season, from the Durham coast, are several luxuriant 

 specimens of this species. They were collected amongst the sand- 

 hills on the north-east of Hartlepool, in the neighbourhood of a large 

 quantity of clayey soil, brought thither, by a temporary line of rail- 

 way, from the new docks ; so that most likely the seeds have been 

 originally introduced along with foreign ballast, and lain dormant till 



