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 the last twenty years of his life Alexios lost much of his popularity.

During the next twenty years the Philo-Laconian policy of Cimon secured Aegina, as a member of the Spartan league, from attack.

During the twenty years between the Corn Laws and the Second Reform Bill Disraeli would seek a Tory-Radical alliance, to little avail.

During any shot, any disc that falls completely into the recessed central " 20 " hole ( aka the " Toad ") is removed from play, and counts as twenty points for the owner of the disc at the end of the round, assuming the shot is valid.

During Senate hearings in 1921, the commandant of the Marine Corps reported that, in the twenty months of active resistance, 2 250 Haitians had been killed.

During the twenty year period following the reversion of the frontier to Hadrian's Wall, Rome was concerned with continental issues, primarily problems in the Danube provinces.

" During the same year, Jack Stillinger claimed that " Coleridge wrote only a few poems of the first rank – perhaps no more than a dozen, all told – and he seems to have taken a very casual attitude toward them ... he kept Kubla Khan in manuscript for nearly twenty years before offering it to the public ' rather as a psychological curiosity, than on the grounds of any supposed poetic merits '".

During the last twenty years under the Spanish flag, the local parties, with the exception of the Partido Incondicional Español ( Unconditional Spanish Party ) embraced the idea of autonomy.

During the twenty years following the riot, the number of lynchings statewide fell to 2.

During his twenty seasons, he set a NFL record for consecutive seasons with at least one interception ( 19 ) and a Redskins team record for regular season games played ( 295 ) and started ( 258 ).

During one event, the Massacre of Saint Bartholomew ( 1572 ), some ten to twenty thousand men, women, and children were massacred by Catholic mobs, chiefly in Paris, but also throughout France.

During his rule of twenty years the order prospered, especially by the establishment of a priory at Paris by Saint Louis in 1259.

During the three-day period, families usually clean and decorate graves ; most visit the cemeteries where their loved ones are buried and decorate their graves with ofrendas ( offerings ), which often include orange Mexican marigolds ( Tagetes erecta ) called cempasúchil ( originally named cempoaxochitl, Nahuatl for " twenty flowers ").

During the last twenty years of his life Thom's published work was mainly in philosophy and epistemology, and he undertook a reevaluation of Aristotle's writings on science.

During the twenty second episode of the twenty second season, " The Ned-Liest Catch ", Ned and Edna began dating.

During the second war, the new ships were quickly completed, with another twenty ordered and built.

During the period of the Israelite Judges, Sisera commanded nine hundred iron chariots and oppressed the Israelites for twenty years from Harosheth Haggoyim, a fortified cavalry base.

During his tenure at Borders, all of the top executive officers resigned ( or were encouraged to leave ), including some who had been with the company for over twenty years.

During the following twenty years, the City of Manistee grew as virgin forests were cut, and the logs put into the Manistee rivers to float to the mills on Manistee Lake.

During its first twenty years, Howard County was a typical western frontier with covered wagons, cowboys, huge cattle herds, rowdy railroad construction gangs, and Army detachments stationed within its borders.

During the twenty years from 1940 to 1960, the city's population increased to nine times that of the population at the turn of the century.

During the 1920s the community incorporated, and in 1936 Wells reported 475 residents and twenty businesses.

During the next twenty years, Pilger became the Daily Mirrors star reporter, particularly on social issues.

During the twenty years which elapsed between his return to Florence and the death of his eldest brother Joseph II in 1790, he was employed in reforming the administration of his small state.