The rocks and coves were again explored, yet much remains unknown. Many new specimens to the locality were found, some of these were from deeper water, rare fish, large sea cucumbers, a large number of strange crabs and many other smaller but no less interesting creatures. As in the past, a number of workers from other institutions used the private laboratories. The eight research rooms were in use most of the time by those doing more advanced work. It is expected that there will be a number of advanced workers from the northern and eastern universities during the coming season. For the first time the laboratory is provided with a satisfactory lighting system. Electricity is now established at Laguna Beach and the laboratory and tent city are well provided with an ample lighting system. The tent city and dining hall will again offer accommodations at reasonable prices. The cost of tuition is $7.50 general charge and $3.00 an hour per hour taken. By an hour is meant the equivalent of an hour's work in a regular college semester. There are eight private rooms for special investigators. For further information write to the Director, William A. Hilton, Pomona College, Claremont, Cal. (Laguna Beach, Cal., from June 26 to September 20.) Courses Offered at the Summer School of the Laguna Beach Biological Laboratory 1917 To reach Laguna Beach from Los Angeles take the electric or Santa Fe to Santa Ana. From Santa Ana a morning stage leaves at ten, an afternoon stage at four. Work begins June 27 and regular courses last six weeks, but the laboratory is open all summer. No one may register for more than six hours. By an hour is included the equivalent of an hour's work during a regular college semester. The staff of the Laguna Marine Laboratory for the summer will be as follows, several others from eastern institutions may be added later. William A. Hilton, Pomona College, Director _Zoology_ Dr. R. V. Chamberlin, Harvard University Museum of Comparative Zoology _Zoology_ E. O. Essig, Department of Entomology University of California _Entomology_ Anna A. Hills _Scientific Drawing_ 1. S. B. 11. Zoology (2 hours). A synopsis of marine invertebrates. Lectures and class exercises with early morning field trips. Prerequisite Biology A1, or open to those who are taking some other biological work. M. to F. at 8. 1a. S. B. 11. Zoology. Marine invertebrates (1 hour if taken with 1, or 2 hours). Laboratory on typical local forms. Mornings 9 to 12, except Saturday.