1906] BERGEN—LITTORAL SPERMATOPHYTES 329 
per gram. In round numbers, 0.2 per cent. of the moisture was sea 
water. This extremely low per centage of chlorin accords with the 
fact that waves never in ordinary storms wash up as far as the level 
on which the plants were growing. They must, however, some- 
times break into spray which reaches the station of the association 
studied. For the purpose of getting data for comparison of the 
salinity of the sand above described with other marine sands and 
soils and with ordinary garden soil, I made some further analyses, 
which are summarized in the table below. 
Sea water 
Per cent. | Per cent. Per cent. 
a tok on water per cent. of 
1. Beach sand, Bay of i eraemoncene A)| 0.0003 0.015 7.3 .19 
2. Beach h sand, Mare" Motto iis acs 0.0163 0.807 21.4 2 76 
3. Beach mud, Lake Lucrinus.......... 0.0125 0.619 52.5 2.23 
4. Loam from vineyard near ( Poeeale -.+| 0,00025 25.0 
The second column of the table shows what proportion of sea water 
present in the sand or mud would account for the amount of chlorin 
actually found. The third column gives the total moisture present, 
and the fourth column shows what proportion of total water in the 
soil was sea water. The calculations are based on the assumption 
that the water of this portion of the Mediterranean contains in 1,000 
parts about as follows:? NaCl, 28.76; KCl, 0.66; MgCl, 3.25. 
In the beach sand from Mare Morto (no. 2) was found an asso- 
ciation consisting of Polygonum maritimum, Salsola Kali Tragus, 
and a species of grass undeterminable at this season. In the imme- 
diate neighborhood occurred occasional specimens of Aster Tripo- 
lium and much Plantago Corono pus. 
In the beach mud from Lake Lucrinus (no. 3) I found no member 
of Association A except Inula viscosa. This was extremely luxuriant, 
with branches attaining a diameter of 4°™ instead of the diameter 
of o.8 to 1°™ usual in ordinary localities. The only associates 
identified in the very limited area examined were Statice Limonium, 
Ficus Carica, and Inula crithmoides (?). 
It is evident from the analyses given that none of the soils examined 
were saline in any such degree as the familiar salt marshes of the 
2 Roru, Justus, Allgemeine und Chemische Geologie 1:524. 1879. 
