we consider the large settlements and the adjacent territories as one geographical unit, then we may group these places into 101 agricultural settlements, 3 semi-agricultural places (Affule, Shekhunath Borukhov and Neve Yaaqov) and 12 farms scattered throughout the country. In addition, there were a few places which, owing to technical difficulties, were not enumerated in the month of April. (Peqiin, Meiron, Mizpa and Zikhron David, numbering in the aggregate 100 persons). Of these agricultural settlements, 32 are located in Judea, 12 in the Plain of Sharon, 32 are located in the Plain of Jesreel, 16 in Lower Galilee, and 9 in Upper Galilee. Most of them have a very small population - about one half being inhabited by less than 100 persons each. In 42 settlements there are from 100 to 500 persons, and in only five does the population exceed 1.000. viz. (p 86) Number of Inhabitants: The aggregate population living in the agricultural and semi-agricultural places were 30.500. Length of Residence in Palestine (p 87 & p 98)The pre-war population accounts for 9,473 persons, which is slightly less than one-third of the present population, whereas the rest are post-war immigrants. Some 10.000 persons settled since 1924, since the so-called middle-class immigration. Late Arab and Muslim immigration to Palestine Whether there was significant Arab immigration into Palestine during the 19th and 20th centuries, especially after the beginning of Zionist settlement there in the late 19th century has become a matter of some controversy. It is known that the Arab population of Palestine doubled during the British Mandate era, from 670,000 in 1922 to over 1.2 million in 1948, and there has been considerable debate over the subject on how much of this growth was due to natural increase, as opposed to immigration. Estimates on the scope of Arab immigration to Palestine during this period vary. Ottoman period, 1800–1918 Some Egyptian migration to Palestine happened at the end of the 18th century due to a severe famine in Egypt, and several waves of Egyptian immigrants came even earlier to escape natural disasters such as droughts and plagues, government oppression, taxes, and military conscription. Although many Palestinian Arabs also moved to Egypt, Egyptian immigration to Palestine was more dominant. In the 19th century, large numbers of Egyptians fled to Palestine to escape the military conscription and forced labor projects in the Nile Delta under Muhammad Ali. Following the First Egyptian-Ottoman War,