J200 ScientiAc Intelligence. — Botany. 



which are about ■^^,X\^. of a millimetre in length, and j^o^th in 

 breadth, are hexahedral crystals of phosphate of lime ; and that 

 the crystals of the tubercles of the iris, which are id of a miUi- 

 nielre in length, and /gth in breadth, are rectangular crystals 

 of oxalate of lime. It was by means of a magnifying power of 

 from 1000 to 2000 diameters that these new researches were 

 established. These crystals, it vvill be remembered, were taken 

 for microscopic hairs, and very recently an author imagined he 

 saw them perforated in the middle of their length, and figured 

 them as such. 



NEW PUBLICATIONS. 



\. Flora of Berwick-upon-Trveed. By George Johnston, M. D. 

 Fellow of the Royal College of Surgeons, &c. Vol. I. Phae- 

 nogamous Plants. 



Although botanists have made extensive collections of the 

 plants of Great Britain, and Floras of different kinds have made 

 their appearance, we are still without a connected and philoso- 

 phical view of the vegetation of this interesting portion of Eu- 

 rope. The Flora of Berwick-upon-Tweed, by Dr Johnston, 

 a man of superior intellect, is in the usual form. It is, not- 

 withstanding, interesting and amusing, and cannot fail to prove 

 acceptable, not only to collectors of plants, but also to the gene- 

 ral reader, who will find in it curious and useful information in 

 regard to the history and uses of the plants enumerated and de- 

 scribed by our author. 



II. PlanUe Asiaticce Rariores ; or, De.tcripfions and Figures of o 

 Select Number of Unpuhlifhed East Indian Plants. By N. 

 Wallich, M. D. 



The work will consist of three volumes in folio, each containing 

 one hundred plates, engraved and coloured in the best style, 

 from the Honourable Company's drawings, made by native ai-- 

 tists under the direction of the author, accompanied by full de- 

 scriptions in Latin, with the addition of such observations in 

 English, as may appear necessary and interesting. It will be 

 published in twelve numbersj each containing twenty-five en- 



