The Massachusetts State Board of Agriculture gathered in Worcester for their third day of sessions, featuring two fascinating presentations that captured the optimism of post-Civil War America. Francis L. Capen of Boston delivered an elaborate address on meteorology, claiming he could predict weather with mathematical certainty based on the moon's position. His theory involved the moon creating atmospheric "tides" that act like a giant magnifying glass, concentrating the sun's heat in predictable patterns. Capen boasted that any intelligent farmer with a Farmer's Almanac could forecast weather far into the future using his system. The afternoon featured Hon. E.W. Bull of Concord discussing grape cultivation and wine production in New England. Bull argued that grape growing could be highly profitable, noting that America produced 2 million gallons of wine the previous year. He provided detailed cultivation advice, from planting vines in north-south rows to using flat trellises made with fire-annealed wire. Bull's own Concord grapes yielded 600 gallons of wine per acre in Massachusetts, though he noted California vineyards produced 1,000 gallons per acre. The discussion included a remarkable statistical table showing European wine production, with countries like Italy producing over 1.2 billion gallons annually.

This agricultural meeting reflects America's post-Civil War transformation from a war-torn nation to one focused on scientific progress and economic expansion. The detailed discussions of meteorological prediction and commercial grape cultivation show how Americans were embracing both scientific innovation and new agricultural opportunities. The wine production statistics and Bull's optimistic projections reveal a nation looking to compete globally in new industries. The emphasis on making farming more scientific and profitable speaks to the broader Reconstruction-era push for modernization. These Massachusetts farmers were part of a national movement to apply systematic knowledge to agriculture, helping fuel the economic growth that would define the Gilded Age.

• Francis L. Capen claimed his weather prediction system was based on the atmosphere forming 'convex lens' effects under the moon's gravitational pull, creating 'focal crises' and 'belts' in the atmosphere analogous to the belts of Jupiter
• Wine production varied dramatically by sugar content needed: two years prior required 2 pounds of sugar per gallon due to cold weather, last year needed 1 pound, and this year only half a pound was sufficient
• European wine consumption was staggering - France averaged over 25 gallons per person annually (including children), yet Bull noted the community remained 'temperate and frugal'
• Bull recommended restricting grape vines to just 5 pounds of fruit in their third year, gradually increasing to 20 pounds by the fourth year of bearing
• One Worcester grape grower, Putnam W. Taft, shared his failed experiment of planting a vine near a cesspool, which caused rapid growth but unripe wood that was killed by frost

• Bull's Concord grapes in Massachusetts produced 600 gallons of wine per acre, but California's climate boosted that to 1,000 gallons - foreshadowing California's future dominance in American wine production
• The detailed European wine statistics reveal Italy led production with over 1.2 billion gallons from 2.8 million acres, while Greece managed only 8.1 million gallons from 41,751 acres
• Bull's discussion of wine's 'moral aspects' came just as the temperance movement was gaining steam - Prohibition would arrive 55 years later, making this optimistic talk of American wine production tragically ironic
• The weather prediction theories discussed here came decades before the U.S. Weather Bureau was established in 1870, showing how individual entrepreneurs were trying to systematize forecasting
• Bull's recommendation of fire-annealed wire for trellises reflects the post-Civil War industrial boom - mass-produced wire was becoming cheap enough for agricultural use, revolutionizing farming methods