MANNA, a concrete saccharine exudation obtained by making incisions in the trunk of the flowering or manna ash tree, Fraxinus Ornus, I.. At the present day the manna of commerce is collected exclusively in Sicily from cultivated trees, chiefly in the districts around Capaci, Carini, Cinisi, and Favarota, small towns 20 to 25 miles west of Palermo, and in the townships of Geraci, Castelbuono, and other places in the district of Cefalù, 50 to 70 miles east of Palermo. In the frassinetti or plantations the trees are placed about 7 feet apart, and after they are eight years old, and the trunk at least 3 inches in diameter, the collection of manna is begun. This operation is performed in July or August during the dry weather, by making transverse incisions 1∣ to 2 inches long, and about 1 inch apart, through the bark, one cut being made each day, the first at the bottom of the tree, another directly above the first, and so on. In succeeding years the process is repeated on the untouched sides of the trunk, until the tree has been cut all round and exhausted. It is then cut down, and a young plant arising from the same root takes its place. The finest or flaky manna appears to have been allowed to harden on the stem. A very superior kind, obtained by allowing the juice to encrust pieces of wood or straws inserted in the cuts, and called manna a cannolo, is not found in commerce in England. The fragments adhering to the stem after the finest flakes have been removed are scraped off, and form the small or Tolfa manna of commerce. That which flows from the lower incisions is often collected on tiles or on a concave piece of the prickly pear {Opuntia}, but is less crystalline and more glutinous, and is less esteemed....
Manna of good quality dissolves at ordinary temperatures in about G parts of water, forming a clear liquid. Its chief constituent is mannite or manna sugar, a hexatomic alcohol, C 6 H 8 (OH) 0 , which likewise occurs, in much smaller quantity, in certain species of Fucus and in plants of several widely separated natural orders. Of this substance the best manna contains 70 to 80 per cent. It crystallizes in shining rhombic prisms from its solution in boiling alcohol. Manna possesses mildly laxative properties, and on account of its sweet taste is employed as a mild aperient for children. It is less used in England now than formerly, but is still largely consumed in South America. In Italy mannite is prepared for sale in the shape of small cones resembling loaf sugar in shape, and is frequently prescribed in medicine instead of manna.
The manna of the present day appears to have been unknown before the 15th century, although a mountain in Sicily with the Arabic name Gibelman, i.e., “manna mountain,” appears to point to its collection there during the period that the island was held by the Saracens, 827-1070. In the 16th century it was collected in Calabria in Italy, and until recently was produced in the Tuscan Maremma, but neither from that locality nor from the States of the Church is any now brought into commerce, although the name of Tolfa, a town near Civita Vecchia, is still applied to an inferior variety of the drug.
Various other kinds of manna are known, but none of these have been found to contain mannite. Alhagi manna (Persian and Arabic tar-angubin) is the produce of Alhagi camelorum, Fisch., a small, spiny, leguminous plant, growing in Persia, Afghanistan, and Baluchistan. This manna occurs in the form of small, roundish, hard, dry tears, varying from the size of a mustard seed to that of a coriander, of a light-brown colour, sweet taste, and senna-like odour. The spines and pods of the plant are often mixed with it. It is collected near, Kandahar and Herat, and imported into India from Cabul and Kandahar to the extent of about 2000 lb. annually, and is valued, at about thirty shillings per lb. Tamarisk manna (Persian gaz-angubin, tamarisk honey) exudes in June and July from the sleuder branches of Tamarix gallica, var. nιannifera, Ehrenb., in the form of honey-like drops, which, in the cool temperature of the early morning, are found in the solid state. This secretion is caused by the puncture of an insect, Coccus manniparus, Ehrenb. In the valleys of the peninsula of Sinai, especially in the Wady el-Sheikh, this manna (Arabic man) is collected by the Arabs and sold to the monks of St Catherine, who supply it to the pilgrims visiting the convent. It is found also in Persia and the Punjab, but does not appear to be collected in any quantity. This kind of manna seems to be alluded to by Herodotus (vii. 31). Under the same name of gaz-angubin there are sold commonly in the Persian bazaars round cakes, of which a chief ingredient is a manna obtained to the south-west of Ispahan, in the month of August, by shaking the branches or scraping the stems of Astragalus florulentus and A. adscendens, Boiss. and Hausskn. Shirkhist, a kind of manna known to writers on materia medica in the 16th century, is still found in the bazaars of north-west India, being imported from Afghanistan and Turkestan to a limited extent. Haussknecht states that it is the produce of Cotoneaster nummularia, Fisch, and Mey. (Rosaceae), and Atraphaxis spinosa, I.. (Polygonaceae), and that it is brought chiefly from Herat.
Oak manna, according to Haussknecht, is collected from the twigs of Quercus Vallonea, Kotschy, and Q. persica, Jaub. and Spach, on which it is produced by the puncture of an insect during the month of August. This manna occurs in the state of agglutinated tears, and forms an object of some industry among the wandering tribes of Kurdistan at the present day. It is collected before sunrise, by shaking the grains of manna on to linen cloths spread out beneath the trees, or by dipping the small branches in hot water and evaporating the solution thus obtained. A substance collected by the inhabitants of Laristan from Pyrus glabra, Boiss., strongly resembles oak manna in appearance.
Australian manna is found on the leaves of Eucalyptus viminalis, Lab.; the Lerp manna of Australia is of animal origin.
Briançon manna is met with on the leaves of the common Larch {q.v. ), and a kind of manna was at one time obtained from the cedar, but none of these are now collected for commercial purposes.
The manna of Scripture, notwithstanding the miraculous circumstances which distinguish it in the Biblical narrative from anything now known, answers in its description very closely to the tamarisk manna.
See Pharmacographia, p. 409; Hanbury, Science Papers, p. 355- 368; Stewart, Punjab Plants, Lahore, 1869, pp. 57-92; Geoffroy, Mat. Med., ii. (1741) p. 584; Dobson, Proc. Roy. Soc. Van Diemen's Land, i. (1851) p. 234.
[1,169 words — estimated reading time: 7 minutes]
מן, Exod. xvi, 15, 33, 35; Num. xi, 6, 7, 9; Josh. v, 12; Neh. ix, 20; Psa. lxxviii, 24; μάννα, John vi, 31, 49, 58; Heb. ix, 4; Rev. ii, 17; the food which God gave the children of Israel during their continuance in the deserts of Arabia, from the eighth encampment in the wilderness of Sin. Moses describes it as white like hoar frost, round, and of the bigness of coriander seed. It fell every morning upon the dew; and when the dew was exhaled by the heat of the sun, the manna appeared alone, lying upon the rocks or the sand. It fell every day except on the Sabbath, and this only around the camp of the Israelites. Every sixth day there fell a double quantity; and though it putrefied and bred maggots when it was kept any other day, yet on the Sabbath there was no such alteration. The same substance which was melted by the heat of the sun when it was left abroad, was of so hard a consistence when brought into the tent, that it was beaten in mortars, and would even endure the fire, being made into cakes and baked in pans. It fell in so great quantities during the whole forty years of their journey, that it was sufficient to feed the whole multitude of above a million of souls. Every man, that is, every male or head of a family, was to gather each day the quantity of an omer, about three quarts English measure; and it is observed that he that gathered much had nothing over, and he that gathered little had no lack,” because his gathering was in proportion to the number of persons for whom he had to provide. Or every man gathered as much as he could; and then, when brought home and measured by an omer, if he had a surplus, it went to supply the wants of some other family that had not been able to collect a sufficiency, the family being large, and the time in which ...the manna might be gathered, before the heat of the day, not being sufficient to collect enough for so numerous a household, several of whom might be so confined as not to be able to collect for themselves. Thus there was an equality; and in this light the words of St. Paul lead us to view the passage, 2 Cor. viii, 15. To commemorate their living upon manna, the Israelites were directed to put one omer of it into a golden vase; and it was preserved for many generations by the side of the ark. Our translators and others make a plain contradiction in the relation of this account of the manna, by rendering it thus: And when the children of Israel saw it, they said one to another, It is manna; for they knew not what it was;” whereas the Septuagint, and several authors, both ancient and modern, have translated the text according to the original: “The Israelites seeing this, said one to another, What is it? מן הוא; for they knew not what it was,” and therefore they could not give it a name. Moses immediately answers the question, and says, This is the bread which the Lord hath given you to eat.” From Exod. xvi, 31, we learn that this substance was afterward called מן, probably in commemoration of the question they had asked on its first appearance. What this substance was, we know not. It was nothing that was common in the wilderness. It is evident that the Israelites never saw it before; for Moses says, He fed thee with manna which thou knewest not, neither did thy fathers know,” Deut. viii, 3, 16; and it is very likely that nothing of the kind had ever been seen before; and by a pot of it being laid up in the ark, it is as likely that nothing of the kind ever appeared after the miraculous supply in the wilderness had ceased. The author of the book of Wisdom, xvi, 20, 21, says, that the manna so accommodated itself to every one’s taste that it proved palatable and pleasing to all. It has been remarked that at this day, what is called manna is found in several places; in Arabia, on Mount Libanus, Calabria, and elsewhere. The most famous is that of Arabia, which is a kind of condensed honey, which exudes from the leaves of trees, from whence it is collected when it has become concreted. Salmasius thinks this of the same kind which fed the children of Israel; and that the miracle lay, not in creating any new substance, but in making it fall duly at a set time every day throughout the whole year, and that in such plenty as to suffice so great a multitude. But in order for this, the Israelites must he supposed every day to have been in the neighbourhood of the trees on which this substance is formed; which was not the case, neither do these trees grow in those deserts. Beside, this kind of manna is purgative, and the stomach could not endure it in such quantity as is implied by its being eaten for food. The whole history of the giving the manna is evidently miraculous; and the manna was truly bread from heaven,” as sent by special interposition of God.
[898 words — estimated reading time: 6 minutes]
