.S48 TRANSACTIONS AND PROCEEDINGS OF [Sess. lvi. 



Note on Some Eecent Botanical Woek. By Professor 

 Bayley Balfour. 



Professor Balfour gave an account of Treub's work on the 

 Casuarinea?, and of Guignard's recent researches upon the 

 nucleus. 



On Temperature and Vegetation in the Royal Botanic 

 Garden, Glasgow, during March 1892. By PiObert 

 BuLLEN, Curator of the Garden. 



The spring month of March was in reaHty the winter of 

 1891-92. Frost anil snow was in excess of anything we 

 have experienced in the same mouth for many years, not 

 even excepting March of last year which was an unusually 

 cold month. Frost was registered on 23 nights, and the 

 total registered for the month was 120°. 



Xight frosts were continuous for the first half of the 

 month, and heavy snow fell during the second week ; on 

 the 16th a misty rain and thaw set in. On the night of 

 the 19th, frost was again recorded and continued with more 

 or less severity to the end of the month. The day temper- 

 ature, especially during the latter half of the month, was 

 above the average ; hard frosty nights being succeeded by 

 bright sunny days. The sun thermometer frequently 

 registering frcjm 70° to 76°. Very dry weather prevailed 

 after the heavy snow fall. All vegetation is much 

 retarded. 



On Temperature and A^'egetation at the Poyal Botanic 

 Garden, during March 1892. By Robert Lindsay, 

 Curator of tlie Garden. 



The past montli lias been exceedingly wintry with much 

 snow and frequent frost, which proved a great hindrance to 

 the progress of vegetation. The thermometer was at or 

 below the freezing point on twenty-six occasions, indicating 

 collectively for the month, 156° of frost as against 130° for 

 the corresponding month last year. 



The lowest readings occurred on the 6th, 22° ; 15th, 20° ; 

 16th, 20°; 28th, 16°; 29th, 17°. The lowest day temperature 

 was 37° on the 27th, and the highest 64° on the 31st. 



It is evident that many plants have suffered severely 



