Images of scientists including Lacepede, Lalande, Lamarck, Lambert, Lanquis, La Quintine, Lasaul, Lavater, Lavisse, Lavoisier, Leeuwenhoek, Lehmann, Lemery, Levi, Lichtenberg, Liebig, Liebniz, Link, Linne, Lonicerus and others are available here.  Digitized by Mary Parker.