Our perceptions differentiate but imperfectlysymptonis which are due to very different causes and reactions, probably because the organization of the plant is so much less highly specialized than that of higher animals.
Besides the shortness of the period these variables possess other characteristics which differentiate them from the long-period variables.
The methods sketched here do not yet exhaust the armoury of the analytical chemist, but it can only be pointed out in passing that the detection of hydroxylated acids enables the analyst to ascertain the presence of castor oil, just as the isolation and determination of oxidized fatty acids enables him to differentiate blown oils from other oils.
Staining reagents can also be used to differentiate lignified cell-walls.
He paid especial attention to orthography, and sought to differentiate the meanings of cases of like ending by distinctive marks (the apex to indicate a long vowel is attributed to him).
This is one of the many facts which differentiate the Crusades of the 13th from those of the preceding century.
Many Arab coins, some Kufic inscriptions and several burial-places were left by the Arabs; but they did not establish their religion or leave a permanent impression on the Phoenician inhabitants, or deprive the Maltese language of the characteristics which differentiate it from Arabic. There is no historical evidence that the domination of the Goths and Vandals in the Mediterranean ever extended to Malta: there are fine Gothic arches in two old palaces at Notabile, but these were built after the Norman conquest of Malta.
The funeral rites are similar, and the religious representations show an identical form of worship. At the same time the local traditions and conditions differentiate the continental from the insular branch.
According to the so-called Steinsche Stadteverfassung (the system introduced in Prussia by Stein in 1808), which, to differentiate between it and other systems, is called the Magistratsverfassung (or magisterial constitution), the municipal communes enjoy a greater degree of self-government than do the rural.
In the same way the child learns from many experiences to differentiate his feelings, and we name them for him--GOOD, BAD, GENTLE, ROUGH, HAPPY, SAD.