Photographs

Notes from Donald Costello's lecture. Trinkaus begins with notes on the history of research on the embryology of crustacea, including Mueller and Haeckel, including a small phylogeny of crustaceans, and some notes on the general embryology of the clade

Notes from Donald Costello's lecture. Trinkaus continues his notes on the embryology of crustaceans with information on the derivatives of various parts of the embryo, a diagram on ectodermal invagination, and a diagram on the anatomy of crustacean larvae

Notes from Donald Costello's lecture. Trinkaus draws a series of diagrams on the development of the barnacle embryo

Notes from Donald Costello's lecture. Trinkaus draws a graph of "polyspermy" with pH (x-axis) and "% eggs fert." (y-axis), then begins a section on "Fertilization Theory of Frank R. Lillie" with 3 points

Notes from Donald Costello's lecture. Trinkaus concludes his series of diagrams on the development of the barnacle embryo (beginning on page 48), with two late stage/adult barnacle diagrams

Notes from William Ballard's lecture. Trinkaus takes notes on degeneration during growth (includes diagram)

Notes from William Ballard's lecture. Trinkaus continues notes on Coelenterates and regneration

Notes from William Ballard's lecture. Trinkaus continues his notes on different experiments with information on "Pulverizing"

Notes from Alfred Sturtevant's lecture. Trinkaus takes notes on the role of the cytoplasm in inheritance, and Goldschmidt's research

Notes from Alfred Sturtevant's lecture. Trinkaus concludes his notes with a line on Sturtevant's take on Goldschmidt and "But this specificty is due to the chromosomes"

Notes from William Ballard's lecture. Trinkaus continues his notes on the embryology of ascidians, then begins a section on "Embryology of Styela" (with three diagrams)