48 MEETING OP THE BRITISH ASSOCIATION. 
Besides these, several other species of Umbellifera, Crncifera, and 
Compositce have been found, but the author has been unable to deter- 
mine them, as they are poor specimens, not in flower, and often dwarf 
and puny in their growth. 
The rare native or naturalized plants consist of 169 species, 32 of 
which were found by Mr. Winch, 5 by Mr. Storey, 35 by Mr. Norman, 
and 37 by Mr. Lawson, — all of which have been published in the 
Transactions referred to. The remaining 60 species are added by the 
author in his paper. 
Three monstrous forms of Trifolium repetis have been found in the 
district, — one by Dr. Johnston on Holy Island, which he thus de- 
scribes in his c Flora of Berwick,' vol. i. p. 162, " The flowers are sup- 
ported on rather long stalks • the calyx has six leaf-like cut segments, 
while the style is dilated into a large ovate leaf, toothed on the mar- 
gins ;" the second, found by Mr. Norman at Seaham, in which the 
petals are changed into little leaves ; and the third by the author at 
West Hartlepool, with the segments of the calyx terminating in leaves 
with strong ribs and teeth. 
It was noticed that the more tender ballast plants nourish for two or 
three seasons, but are soon killed by the frost of a severe winter, or 
the cutting east winds in spring. Some species have been carried in- 
land with ballast taken for the repair of railways ; several plants, — such 
as Antirrhinum Linaria, Anthyllis Fulneraria, two species of Biplo- 
taxis, some of Melilotus and other Leguminous, and some Composites, 
that were rarely, if ever, seen before the railways were made, have been 
conveyed thus along the lines of railway, and so have now be- 
come established. The ordinary common species of the district have 
not as yet suffered any decrease or injury from the imported plants. 
It was also remarked that after the ballast had been deposited for a 
short time, annuals mostly spring up, but after two or three years they 
gave way to a variety ot perennials, which succeeded them. 
On the Zones of the Conifers, from the Mediterra- 
nean to the Crest of the Maritime Alps. By W. Mo«-gridge, 
Esq. ° 
Mr. Moggridge said :— In presenting a paper on the Zones of the 
Coni/em from the Mediterranean to the crest of the Maritime Alps, it 
is my wish to confine myself to mere facts, leaving to others more 
