during the summer season and by the seaside or some inland water. Thus can the needed material be obtained at the right time, and the collecting and exploring unite in the best possible manner study with healthful recreation. The general spirit of the laboratories is excellent; research is carried forward side by side with instruction, so that the dividing line is almost obliterated; there is a friendly spirit of cooperation and rivalry; things are known at first hand rather than darkly through books and lectures; the standard of living is simple; the follies and worse not uncommon in the colleges are lacking to a noticeable degree.
The Marine Biological Laboratory at Woods Hole may be regarded as the lineal descendant of Agassiz's school at Penikese, of which it has well maintained the traditions. The equipment has always been modest, as is shown by the accompanying photograph of the buildings, and perhaps this has not been a serious disadvantage. It is, however, hoped that sooner or later a fireproof building, which may be kept open in winter as in summer, will be erected. There are each year at Woods Hole between fifty and one hundred investigators carrying on original research, and about an equal number of students, many of whom become investigators. The Carnegie Institution has wisely decided not to acquire the laboratory, but is supporting it by contributing $10,000 for twenty tables, and the laboratory is thus on a secure financial basis without loss of the independence and spirit of cooperation which have accomplished so much in the past. While the Woods Hole laboratory remains our chief center of biological research, rivaled only by Naples, other laboratories have been established along the Atlantic and Pacific coasts, at the Bahamas and on inland waters. Expeditions and camps of a temporary character should be mentioned in connection with the summer schools of natural history; practically all the geologists of the country are now in the field, and in many cases the parties consist of expert investigators accompanied by those who assist and learn.
The summer schools of the universities have not yet found their permanent basis, but there is no question as to the direction of their development and of the importance of the movement. A summer school once established is seldom abandoned and nearly always shows an increase in size and an improvement in quality from year to year. There are this summer over a thousand students at Harvard and at Columbia, and nearly twice as many at Tennessee. The students are largely teachers, but there are others of mature age, who wish to improve themselves. Then there are some regular students of the institutions—on the one hand, those so much interested in their work that they do not wish to lose the summer and, on the other hand, a few who need to 'make up conditions.' The instructing staff is also heterogeneous, there being usually some eminent lecturers and a good many young assistants. Chicago set the example of continuing its terms through the year, though in attempting to adjust its summer quarter to the needs of teachers, it has abandoned its original plan. We expect to see the university year ultimately divided into four quarters, with perhaps two weeks' vacation between each. The work of the summer term will be as 'regular' as any other, but as there will be fewer students an opportunity will be afforded to provide a special summer school for teachers. There are over 300,000 teachers in the country. It would be well if all schools would pay them a certain salary and in addition provide for their attendance at a summer school.
SCIENTIFIC ITEMS.
We regret to record the death of Professor W. C. Knight, professor of