Pebruabt 13, 1914] 



SCIENCE 



237 



those of other collaborators and members 

 of the observatory staff, present features 

 of special interest in the departmental re- 

 port. 



Favorable progress has been made in 

 grinding the glass disk for the 100-inch 

 telescope since the source of the obstacle 

 encountered in this work was discovered 

 about a year ago. The disk has been sub- 

 jected to severely critical tests, which give 

 assurances that it will meet requirements. 

 The preparation of a 60-inch plane mirror 

 for testing the 100-inch reflector has gone 

 on simultaneously with work on the latter. 

 The heavier parts of the mountings for the 

 telescope are now under construction by the 

 Fore River ship yards at Quincy, Massa- 

 chusetts, while the foundations on Mount 

 Wilson and the dome superstructure will 

 probably be completed as soon as the disk 

 and its mountings are ready. Allusion has 

 already been made in a previous section to 

 the new office building at Pasadena and to 

 the remarkable success achieved in the con- 

 struction of a dividing engine for ruling 

 diffraction gratings. For adequate ac- 

 counts of these and numerous other sub- 

 jects of interest reference must be made to 

 the director's full report. 



WORK OF KESEAECH ASSOCIATES AND COLLAB- 

 OEATOKS 



As indicated in previous reports, the 

 complexity of the relations which research 

 associates and collaborators sustain to the 

 institution is so great as to preclude any 

 comprehensive explanation ivithin the lim- 

 its allotted to an annual administrative re- 

 port. Their work embraces a wide range of 

 subjects and varies in its conduct from in- 

 dividual independence to intimate collabo- 

 ration with the departments of research 

 and with the division of publications. Dur- 

 ing the past year more than twenty distinct 



fields of research have been cultivated and 

 a total of more than one hundred investi- 

 gators have contributed to the output. 

 Summaries of the work of associates pro- 

 ceeding independently are given by them 

 in the current year book. Their publica- 

 tions of the year are cited in the biblio- 

 graphical lists of later sections, and the 

 work of many collaborators is mentioned in 

 departmental reports. Attention may be 

 called, among many important researches, 

 to that of Professor H. N. Morse on the os- 

 motic pressure of solutions, now approach- 

 ing completion; to the investigations of 

 Professor Mall and colleagues in embryol- 

 ogy ; to the completion of the edition of the 

 Arthurian Romances by Dr. H. Oskar Som- 

 mer by the publication during the year of 

 the seventh volume of this monumental con- 

 tribution to early English literature; to the 

 appearance during the year of a translation 

 into German of the work on "Dynamic 

 Meteorology and Hydrography," the insti- 

 tution 's publication No. 88, by Professor V. 

 Bjerknes; to the significant studies of Pro- 

 fessors Osborne and Mendel in extension of 

 their researches on the vegetable proteids; 

 to the fundamental investigations of Pro- 

 fessor Reichert, brought out in publications 

 Nos. 116 and 173; and to the penetrating 

 contributions to philology embodied in the 

 series of researches of Mr. William Church- 

 ill, published in Nos. 134, 154, 174 and 

 184. 



FINANCIAL STATEMENT FOR FISCAL YEAR 



1912-1913 

 The sources of funds available for ex- 

 penditure during the past fiscal year, the 

 allotments for the year, the revertments 

 made during the year, and the balances un- 

 alloted and unexpended at the end of the 

 year are shown in detail in the following 

 statement : 



