406 Mr Lindsay's Report on Open-Air Vegetation. 



lowest readings were, on tlie 15th, 23°; 16th, 19"; 17th, 

 18°; 18th, 15°; 19th, 28°. The highest morning readings 

 were on the 3rd, 56°; 7th, 51°; 8th, 48°; 27th, 45°. The 

 lowest day temperature was 31° on the 17th, and the 

 highest 63° on the 3rd. The rainfall has heen very light. 

 There were no fewer than twenty-two dry days during the 

 month. Rain fell more or less daily from the 25th till the 

 29th. Very few plants are in flower out of doors. On the 

 Rock Garden only one species came into flower, viz., Crocus 

 Jiadriaticus, and, with the exception of Jasminum nudi- 

 florum and Hamamelis virginica, which came into flower in 

 other parts of the garden, no others have been observed as 

 having come into blossom during November. Although 

 there are still a few left, which had opened previously, 

 vegetation generally has gone sooner to rest this season 

 than was the case last, and there are fewer plants in flower. 

 This result is mainly due to the distribution of cold having 

 been difl'erent. The aggregate amount of frost registered 

 during this November is nearly the same as was registered 

 during last November. Still, during this November the 

 individual minimum readings have been lower in conse- 

 quence of the distribution of frost having been confined to 

 a less area, which shows that in dealing with this subject 

 average temperatures are apt to be misleading. For all 

 outdoor work the month has been on the whole a favourable 

 one. 



December. — The weather during the month of December 

 has been very variable ; sudden changes of temperature 

 occurred during the greater portion, except from the 5th 

 to the 11th, when steady frost prevailed. The thermometer 

 was at or below the freezing point on fourteen mornings, 

 indicating collectively 111° of frost. During the corre- 

 sponding month of 1884 frost was registered on twenty 

 mornings, the collective amount being 88° only. 



The rainfall was extremely light for December. A 

 slight fall of snow took place on the 9th and on the 29th, 

 but on both occasions disappeared rapidly. 



The lowest readings of the thermometer occurred on 

 the 7th, 16°; 8th, 17°; 10th, 18°; 11th, 16°; 30th, 21°. 

 The highest morning readings were on the 2nd, 44°; 14th, 

 44°; 16th, 47°; 17th, 47°; 31st, 44°. The lowest day 



