-1859] 



WRITINGS OF JOSEPH HENRY. 



Table of Plants — Continued. 



189 



NAMES OF PLANTS. (Time of flowering .) 



Acer pseudo-platanus, a maple 



Achillaea millefolium, yarrow 



Aconitum napellus, monkshood 



^sculus hippocastanum, horse chestnut. 



Amygdalus Persica, peach 



Amorpha fruticosa, common false indigo 



Anthemis cotula, mayweed 



Berberis vulgaris, barberry 



Betula alba, white birch 



Crataegus oxyacantha, English hawthorn. 



Clematis viticella, Italian clematis 



Daphne mezereum 



Lonicera Tartarica, Tartarian honeysuckle 

 Magnolia grandiflora, gr. flower magnolia 



Morus alba, white mulberry 



Philadelphus coronarius, mock orange 



Populus alba, white poplar 



Populus balsamifera, balm of Gilead 



Prunus cerasus, cherry laurel 



Prunus domestica, common plum 



Prunus spinosa, sloe, black thorn 



Pyrus communis, pear tree 



Pyrus malus, apple 



Khus typhina, sumach 



Eibes grossularia, gooseberry 



Kibes rubrum, red currant 



Eibes nigrum, black currant 



Robinia pseudo-acacia, white locust 



Sorbus aucuparia, mountain ash 



Tilia Europsea, linden tree 



Mean time. Earliest. Latest 



April 28 



July 13 



June 1 



May 3 

 March 20 



June 12 



June 5 



May 4 



April 8 



May 4 



June 29 



March 15 



May 9 



April 16 



May 22 



May 23 



March 23 



March 23 



April 16 



April 16 



April 7 



April 13 



April 25 



July 13 



April 3 



April 2 



April 14 



May 30 



May 2 



June 9 



April 19 

 July 5 

 May 15 

 April 23 

 Feb. 27 

 May 28 

 May 6 

 April 18 

 March 22 

 April 16 

 June 2 

 March 3 

 April 23 

 March 8 

 May 15 

 May 

 Feb. 

 Feb. 

 April 

 March 27 

 March 2 

 March 9 

 April 12 

 July 5 

 March 12 

 March 18 

 March 28 

 May 17 

 April 16 

 May 15 



11 



28 



28 



2 



NAMES OF PLANTS. [Time of fruit.) 



Acer pseudo-platanus, a maple 



Amygdalus Persica, peach 



Prunus cerasus, cherry laurel 



Pyrus communis, common pear 



Ribes grossularia, gooseberry 



Ribes rubrum, red currant 



Ribes nigrum, black currant 



Meantime. 



Oct. 30 



Aug. 22 



June 11 



Aug. 26 



June 25 



June 15 



June 15 



Earliest. 



25 



Oct 



Aug. 5 



May 30 



July 28 



June 16 



June 6 



June 8 



Latest. 



Nov. 

 Sept. 

 June 

 Sept. 

 July 

 June 

 Jime 



3 

 11 

 24 

 14 



8 

 29 

 27 



Heat on different surfaces. — The amount of heat which falls 

 upon a given surface depends upon the inclination to the 

 different points of the horizon. A field, for instance, in our 

 latitude sloping towards the south, receives a greater, and 

 one towards the north a less amount of heat; moreover, the 

 former obtains more than an equal extent of ground parallel 



