Dec. 1S94.] BOTANICAL SOCIETY OF EDINBURGH. 317 



even while in the act of vomiting and holding the basins 

 in their hands, some dropped off to sleep, as did others on 

 their feet while being walked up and down. It was found 

 that in the worst cases no more than half an ounce could 

 have been chewed. The day after, all had recovered. 



PvEPOET ON THE FlOEA OF ILE DES AIGRETTES, MAURITIUS. 



By Surgeon-Major H. H. Johnston, Army Medical Staft; 

 D.Sc, F.L.S. 



He des Aigrettes is situated about ^\ mile north-east of 

 Pointe d'Esny, on the south-east coast of Mauritius, from 

 which it is separated by a shallow sea, 2 fathoms deep at 

 the deepest part. 



The island is irregularly circular in form, about ^ mile 

 broad, and at the highest part, in the centre, it reaches a 

 height of 45 feet above sea-level. The surface of the 

 island is rather flat, and the margin is considerably under- 

 mined by the sea. The island is formed of coralline lime- 

 stone, and there is no fresh water in it. At the north end 

 there is a lime-kiln and a caretaker's house, in the neigh- 

 bourhood of which there is some waste ground and a few 

 cultivated plants. The mean annual temperature in the 

 shade is about 75° Fahr., and at Anse Jonchee, about 4i 

 miles north of He des Aigrettes, on the main island of 

 Mauritius, the mean annual rainfall is 8S"58 inches. 



I botanised on He des Aigrettes on three occasions, viz. 

 18th August 1888, 4th March 1889, and 20th June 1890. 



The following table shows the number of identified 

 species in each of the three divisions of the vegetable 

 kinQ:dom : — 



The 30 native species include 16 herbs, 9 shrubs, 3 

 climbers, 1 parasite, and 1 marine flowering plant. 



