During this precarious period of development the mother should continue to influence the growth of the child's conscience.

During the period from 1 July 1960 through 31 January 1961, additional research affiliations were effected with the U. S. Army Medical Research and Development Command to conduct research in procedures for quantitative electron microscopy, and for the study of biophysical and biological studies of the structure and function of ocular tissue.

During this period, a total of 762 exhibits were presented at 442 medical and scientific meetings.

During the period of this report, 37,470 new cases were entered into the various registries.

During this period, 7,827 teaching sets were distributed on loan.

During the period of this report, 63 panel exhibits depicting the latest developments in medical research were displayed.

During the period, the laboratory rendered centralized macropathological service to qualified requesters.

During the period from 1 July 1960 through 31 January 1961, the Medical Museum was required to move to Temporary Building `` S '' on the Mall from Chase Hall.

During the period of about 4 hours around sunset, skywave transmission conditions are building up until full nighttime conditions prevail ; ;

During the Civil War period Mr. Brown also invented the Brown & Sharpe formed tooth gear cutter, a basic invention which ultimately revolutionized the world's gear manufacturing industry by changing its basic economics.

During this period 7,484,268 members were received, yet the net membership now is only 9,910,741.

During the period of the Iberian Union ( 1580 – 1640 ), Portugal lost influence and power and made new enemies.

During the Romantic period, art came to be seen as " a special faculty of the human mind to be classified with religion and science ".< ref >

During the same period the Georgian states of Colchis and Tabal arose around the Black Sea and central Anatolia respectively.

During this same period, slave-holding border states had more free African-Americans and European immigrants than the lower South, which increased Southern fears that slavery was threatened with rapid extinction in this area.

During this period he published 18 plays and 3 novels, including the murder mystery The Red House Mystery ( 1922 ).

During this period winter sports were slowly introduced: in 1882 the first figure skating championship was held in St. Moritz, and downhill skiing became a trendy sport with English visitors early in the 20th century, as the first ski-lift was installed in 1908 above Grindelwald.

During the post-World War I period ski-lifts were built in Swiss and Austrian towns to accommodate winter visitors, but summer tourism continued to be important ; by the mid-20th century the popularity of downhill skiing increased greatly as it became more accessible and in the 1970s several new villages were built in France devoted almost exclusively to skiing, such a Les Menuires.

During the first 11 months of 2006, net imports grew by 21 percent to $ 1. 95 billion, while exports stood at $ 895 million, up 0. 3 percent from the same period in 2005.

During the first 11 months of 2006, the European Union remained Armenia's largest trading partner, accounting for 34. 4 percent of its $ 2. 85 billion commercial exchange during the 11-month period.

During January – February 2007, Armenia ’ s trade with Russia and other former Soviet republics was $ 205. 6 million ( double the amount from the same period the previous year ), making them the country ’ s number one trading partner.

During this period, spectator attendances dropped and media condemnation increased, but Simpson and Lawry flatly disregarded the public dissatisfaction.

During the Tokugawa period ( 1600 – 1868 ) the Ainu became increasingly involved in trade with Japanese who controlled the southern portion of the island that is now called Hokkaido.

During this period Agamemnon and his brother, Menelaus, took refuge with Tyndareus, King of Sparta.

During the Akkadian period, the Akkadian language became the lingua franca of the Middle East, and was officially used for administration, although the Sumerian language remained as a spoken and literary language.

During each winter there is usually one fall of snow in the south and two in the north ; but the snow quickly disappears, and sometimes, during an entire winter, the ground is not covered with snow.

During the remainder of Nero's reign, Agrippina's grave was not covered or enclosed.

During the last glacial period of the Würm glaciation, the Black Forest was covered by glaciers ; several tarns ( or lakes ) such as the Mummelsee are remains of this period.

During the Renaissance and the Baroque, visible brick walls were unpopular and the brickwork was often covered with plaster.

During the winter months Lake Cadillac and Lake Mitchell freeze over and the city becomes covered with snow.

During this period, many performers, including Rose Maddox, Kitty Wells, Olivia Newton-John, Emmylou Harris, and Linda Ronstadt, covered her songs, and her siblings Randy and Stella both received recording contracts of their own.

During the first few days of the spill, heavy sheens of oil covered large areas of the surface of Prince William Sound.

During times of heavy rainfall, much of the savannah area is covered by shallow water, making transportation by means other than a shallow-draft boat almost impossible.

During his evidence, he read from the letter he had written to the Chancellor, which included the statement that a notation of paid postage could be created "… by using a bit of paper just large enough to bear the stamp, and covered at the back with a glutinous wash …".

During the rainy seasons and thereafter, when the fields are covered by growing crops, the village environment is intensely verdant.

During the Migration Period, the Slavic tribe of the Carantanians migrated into the Alps in the wake of the expansion of their Avar overlords during the 7th century, mixed with the Celto-Romanic population, and established the realm of Carantania, which covered much of eastern and central Austrian territory.

During the late Roman Empire, several Roman provinces covered the territory that comprises present-day Bulgaria: Scythia ( Scythia Minor ), Moesia ( Upper and Lower ), Thrace, Macedonia ( First and Second ), Dacia ( Coastal and Inner, both south of Danube ), Dardania, Rhodope ( Roman province ) and Haemismontus, and had a mixed population of Byzantine Greeks, Thracians and Dacians, most of whom spoke either Greek or variants of Vulgar Latin.

" Military historians Herman Hattaway and Archer Jones wrote, " Unenthusiastic about the attack, Longstreet consumed so much time in properly assembling and aligning the corps that the assault did not commence until 4 p. m. During all the time that passed, Meade continued to move in troops to bring about a more and more complete concentration ; by 6 p. m. he had achieved numerical superiority and had his left well covered.

During 1745 the New England expedition which took Louisburg ( 30 April – 16 June ) was covered by a British naval force, but little else was accomplished by the naval efforts of any of the belligerents.

During the middle Archaic period, from 5000 BCE to 2000 BCE, the Mount Taylor culture region covered northeast Florida, including the area around Cape Canaveral.

During one of these trips, the presence of Zaharoff was detected in the shipyard where the Spanish submarine was built, but the Spanish authorities " covered " the matter.

During a time when much of what is now inland Australia was below sea level, the sandstone was then covered by a layer of marine sedimentary rock shortly afterwards, which formed a confining layer-thus trapping water in the sandstone aquifer.

During the final years of his life, he covered conflicts in Greece and lived in England with Cora, where he befriended writers such as Joseph Conrad and H. G. Wells.

During the 1920s, her salon at 27 Rue de Fleurus, with walls covered by avant-garde paintings, attracted many of the great writers of the time, including Ernest Hemingway, Ezra Pound, Thornton Wilder, and Sherwood Anderson.

During a luminous flight time that exceeded 40 seconds the fireball covered a ground path of some 700 to 800 km.

During Peary's expedition, the Ice Shelf was continuous ; a modern estimate is that it covered.

During the Middle Ages most European and Byzantine married women covered their hair rather than their face, with a variety of styles of wimple, kerchiefs and headscarfs.

During these cold spells, Dryas octopetala was much more widely distributed than it is today, as large parts of the northern hemisphere that are now covered by forests were replaced in the cold periods by tundra.

During occasional ceremonies of particular importance, the side walls are covered with a series of tapestries, the originals of which were designed for the chapel by Raphael and depict events from the Life of St. Peter and the Life of St. Paul as described in the Gospels and the Acts of the Apostles: the full-size preparatory cartoons for seven of the ten tapestries are known as the Raphael Cartoons and are in London.