Bright red or orange masses of these were often found in bits of seaweed from deeper water. The individuals were 2 to 3 mm. across and often closely massed on the seaweed or other support. _Eudistoma diaphones_ Ritter and Forsythe This was the common compound species found closely attached to the lower sides of stones. It was often quite extensive but not thick or colored. _Eudistoma psamion_ Ritter and Forsythe Great masses of this tough, pinkish or slightly colored form were found under rock ledges. It resembles one of the sponges in general appearance and is found in among sponges and polyzoans. This was one of the most bulky forms which we found. _Glossophorum planum_ Ritter and Forsythe Irregular masses of this species were found under rock ledges and under stones. Our specimens are largely covered with sand grains. _Distaplia occidentalis_ Ritter and Forsythe This compound stalked form was found on a rock ledge at low tide near Salt Creek. W. A. H. (_Contribution from the Zoological Laboratory of Pomona College_) Summer School at Laguna Beach The summer school at Laguna Beach during the past season was in many respects the most valuable of the past five or six years. There were more students, more teachers and fully as many visitors. The harvest of specimens was very satisfactory. Many creatures not before gathered here were brought from the nearby waters. Amphioxus was obtained here for the first time, as well as many other interesting and valuable specimens. [Illustration] Several new courses were offered. A course in Ecology was given by Professor Bean. In this the local distribution of animals was especially studied. A similar course is to be offered this summer to those who have had some zoology. It is believed that this work will bring greater and greater advantages to us here as we come to know the local conditions better. In the nature of the material this will always be to a large extent a field study. The course in birds given by Professor Nininger was interesting and valuable. A number of new records for this region were obtained during the summer. [Illustration] For the first time Miss Hills gave a course in drawing in connection with zoological subjects. This much-needed and valuable work will be continued during the coming summer, not only in a special course, but also in an optional way in connection with several of the other courses. [Illustration] In connection with the ecology especially, more off-shore collecting was done than ever before. A number of longer trips were found interesting and valuable. Laguna at all times offers attractive walks and many short trips were taken by all classes. Some of these were for a few miles along the coast, back in the hills or by water or land for a considerable distance.