238 INJURIES TO PLANTS, WINTER, 1880-81. 



beris Darwinii, B. japonica, B. vulgaris, Biota orientalis, Broccoli, 

 Brussels sprouts, Camellias, Cedrus Atlantica, Chamserops Fortunei, 

 Chimonanthus fragrans, Choisya ternata, Cistus ladaniferus, Clematis 

 Jackmauni, C. montana, Cotoneaster microphylla, C. Simousii, Cryp- 

 tomeria elegans, C. japonica, Cupressus borealis, C. Lambertiana, C. 

 Lawsoniana, C. macrocarpa, C. sempervirens, Desfontainea spinosa, 

 Erica codonodes (wood well ripened, kd. 10 yrs. ago), Escallonia 

 macrantha (on wall), Forsythia elegans, Gladiolus, Hyacinths, Jas- 

 minum nudiflorum, Kalmia latifolia, Larch, Lilac, Lilium auratum, 

 L. lancifolium, Liquidambar styraciflua, Magnolia grandiflora, 

 Onions (winter), Osmantkus aquifolius, 0. ilicifolius, Pampas grass, 

 Passiflora ccerulea, Paulownia imperialis, Phormium tenax varie- 

 gatum, Pinus patula, Rhododendrons (all except P. arboreum), Rhus 

 glabra, Roses, Sequoia gigantea, Skimmia japonica, Taxodium disti- 

 chum, Tritoma uvaria, "Wistaria sinensis, Yucca aloifolia, Y. filamen- 

 tosa, Y. gloriosa. 



Observations — I have paid great attention for years to the extra- 

 ordinary differences of temp, occurring in places. It is found that 

 fields side by side and with the same aspect are widely different as to 

 earliness. One may be of great value for early strawberries, the 

 other useless for the early strawberry market. The soil at Lamor- 

 ran is very "cold." There are, however, some "spits" in my gar- 

 den much warmer than others. I have placed, on more than one 

 occasion, 10 or 12 thermometers about my garden in different places 

 and I found as many as 10 degrees difference; in fact in one place, 

 one mile distant, there was no frost, in another 6, or 10 degrees; 

 again a lake near was frozen, while at an elevation of 80 ft. the 

 ground was worked easily and vegetables planted. The deep valleys 

 in Cornwall are intensely cold even near the sea. The temperature 

 has been 0° twice in the same winter : and I have known at the end 

 of May the Oaks in the valleys to have their leaves quite black and 

 nearly killed. I have had 2 degrees of frost on 22nd or 23rd of July. 

 This shows how little one can tell about hardiness of plants in diffe- 

 rent localities. Thus on one occasion I found all my Rhododendrons 

 cut to pieces in one place ; but other specimens and Camellias else- 

 where were untouched. Hydrangeas and Laurustinus, however, are 

 killed about every third year, wherever they may be planted. I 

 attribute this to the warm weather in Nov., or Jan., exciting them 

 to grow, and consequently the sap being in the vessels they burst. 



