178 president's address. 



Acer 2^i(^i<^^oides, ^sculus liippocastanum, Berheris vulgaris^ Col- 

 chicum autumnale, Convallaria inajalis, Corylus Avellana, Crocus 

 vernus, Cijtisus Laburnum, Daphne Mezereum, Fagus sylvatka, Cor- 

 nus masciila, Fraximis excelsior, Fritillaria imperialis, Hepatica 

 ccerulea, Hordemn vulgare, II. hihernum, II. wstivum, Leucojum ver- 

 num, Lilium candidum, Prunus Avium, P. Padus, Pyrus Mains, 

 Rihes Grossularia, R. ruhrum, Sambucus nigra, Secale cer-eale, S. 

 hibernum, S. oestivum, Sorbus aucuparia, Syringa vulgaris, Triticum 

 hibernum. And in those species the annexed phcenomena are to be 

 annually noticed: — 1st, The first appearance of the superior side 

 of the leaves ; 2nd, The complete development of the first 

 flower, and the ajopearance of the pollen ; 3rd, The normal 

 ripening of the first fruit (not attacked by an insect); the 

 beginning of the crop of cereals ; and 4th, The general decolora- 

 tion of leaves. 



Also, when these periodic appearances are to be noted for 

 many succeeding seasons, the identical trees, or plants, in the 

 same field, or garden, should form the subjects, and the observa- 

 tions be continued under circumstances as much the same as 

 ■ possible.* 



I may further add, that other Phoenological observations, 

 applied with attention, to other branches of Natural History, 

 as Ornithology, Entomology, &c., will prove of much value, and 

 increase our knowledge of climate, and the chief annual epochs 

 of natural objects. 



Those members of our Club, who reside much in the country, 

 and who have leisure for such investigations, will find this an 

 occupation affording them very great delight. And for some 

 good "remarks on the importance of registers of periodic pheno- 

 mena in Natural History," I will refer my hearers to the Rev. 

 L. Jenyns's agreeable little work, entitled, " Observations in 

 Natural History."! 



As a Field Naturalist, and living in a county celebrated for 



* The Report may be seen in the " Literary Gazette," page 22, for January 3, 1857. 

 t See a long and useful memoir, entitled " Observations des Phenombnes Pe'riodiquos," 

 comprising Botanical and Zoological observations, made in l!-'.'i4 and 185.5, published in 

 M6moires de L' Acad. Koy. de P>elgiqtie," Tom. 30, 1857. 



