Four Quarts Makes a Gallon

One in 11.2 million cattle births produces quadruplets. Four Quarts Makes a Gallon, by Kathy Coatney, builds on her children's "Farmer Guy/Gal Series" with a story geared to second-graders, about the amazing birth of Holstein quadruplet calves at a California dairy. $9.99 in paperback, $3.99 for e-readers. Order from local or online booksellers.