One of the chief differences between pure Gothic and Norman architecture is in the use of the pointed form of arch, yet in the study of the early buildings of this date it is curious to notice how evenly the balance is held between the pointed and the round arch, and how at one time it was quite an open question whether the Gothic style would be distinguished by a round or a pointed arch. In Germany and Italy the round arch held its own and continued to be used right through the Middle Ages. In England, however, the pointed arch soon gained a decided victory over its rival. Many theories have been put forward concerning the introduction of the pointed arch, one amongst them being that it was the result of the intersection of two circular arches such as is very commonly found in late Norman work; another theory is the poetical idea that it was copied from an avenue of trees. Whether or not either of these theories holds good, it is quite certain that this form of arch was known in the East for centuries before it reached Europe, being found in cisterns and tombs in Egypt and Arabia dating from long before the Christian era. It has also been suggested that it was introduced from the East by the Crusaders, in which case we should have found it making its first appearance in Hungary, Poland, Bohemia and Russia, but it so happens that these were the very last countries in Europe to adopt the pointed arch. [Side note: The Transitional Period.] The first form of the pointed arch, known as the Early English, was used from about 1180 to 1300, including part of the reigns of Henry II., Richard I., John, Henry III. and Edward I. "Nothing," says the Rev. J. M. Hutchinson, "could be more striking than the change from Norman to Early English. The two styles were the complete opposites of each other; the round arch was replaced by the pointed, often by the acute, lancet; the massive piers by graceful clustered shafts; the grotesque and rudely-sculptured capitals by foliage of the most exquisite character; and the heavy cylindrical mouldings by bands of deeply undercut members." [Illustration: Arcading showing the junction of the Norman and Early English Masonry. Dunstable Priory Church. _Photograph H. A. Strange._]