Laboratory) building was completed in 1941. Today, research covers areas such as the production of biofuel crops, invasive plant management, developing integrated pest management (IPM) methods for Connecticut nurseries, and management of the exotic hemlock woolly adelgid (Adelges tsugae). Lockwood Farm The research farm is named after William Raymond Lockwood. He was a resident of Norwalk, CT who willed his estate to CAES, proceeds from the sale of which went towards the purchase of 20 acres of land in the Mount Carmel area of Hamden, CT in 1909(12). During the mid-twentieth century, James G. Horsfall (former Station Director) used the farm to test organically-derived fungicides as a replacement for the heavy metals used to treat plant diseases at the time. Since 1931, the farm managers have taken daily, systematic weather measurements which provide information that can be used to study Connecticut's climate. Many plant varieties and growing methods are tested. Every year in August the farm hosts the annual Plant Science Day. Griswold Research Center The most recent addition to the CT Agricultural Experiment Station's holdings, Griswold Research Center, encompasses 14 acres of farmland in Griswold, CT and an additional parcel of forest in the adjacent town of Voluntown, CT. Transferred from the Connecticut Department of Environmental Protection (DEP) in 2008, current activities on the property include studies of cold-hardy grape vine varieties, the cultivation of rapeseed for biofuel production and the biocontrol of soil nematodes. There is also an office for the State Bee Inspector, who monitors Connecticut's honeybee populations. Station directors The station has had just ten directors during its history: Dr. Wilbur Olin Atwater (1875–1877) Dr. Samuel William Johnson (1877–1900) Dr. Edward Hopkins Jenkins (1900–1923) Dr. William L. Slate (1923–1947) Dr. James G. Horsfall (1948–1971) Dr. Paul E. Waggoner (1972–1987) Dr. John F. Anderson (1987–2004) Dr. Louis A. Magnarelli (2004–2013) Dr. Theodore G. Andreadis (2013–2020) Dr. Jason C. White (2020–present) Notable scientific contributions Amino acids and the discovery of vitamins In 1909 station chemist Thomas B. Osborne began collaborating with Lafayette Mendel of Yale University to test the nutritive value of the proteins that Osborne had isolated from crop seeds. Through feeding trials with albino rats, they determined that the type and quality of protein actually was more important to growth than quantity. They found that certain amino acids were lacking in the proteins isolated from grains. For example, when rats were given only zein, found in