MUSEUM OF COMPARATIVE ZOOLOGY. 13 



in Reserve Officers' Training Corps in military sketching and map- 

 reading. 



Mr. Randolph C. Ray has given efficient service throughout 

 the year as preparator and as assistant in the mechanical work of 

 the Seismographic Station. To facilitate his work, a small room 

 was partitioned off in the hall of the second floor of the Geological 

 Museum. 



A few additions have been made to the Gardiner Collection of 

 Photographs; but no significant changes or additions to the equip- 

 ment of the laboratories were made during the year. 



The building was struck by lightning in August, 1918, the bolt 

 entering the motor room and setting fire to gas from a pipe which 

 it burned through. It should be recorded that the brick chimney 

 of the ventilator on the building was broken down by lightning 

 two years ago. It is probable that the copper roof and the large 

 amount of iron piping in the fire-service installed in the building 

 will ordinarily dissipate an electric discharge. 



Professor Ward continued his instruction in meteorology at the 

 U. S. Army School of Military Aeronautics at the Massachusetts 

 Institute of Technology until the end of December, when the 

 Ground School for flying cadets was discontinued; the lectures 

 given at this School have been printed. Professor Ward has con- 

 tinued his study of the effects of current weather conditions upon 

 military operations in the war, and has made progress in the prepa- 

 ration of a book on the climatology of the United States. 



A new marine barometer, and a new thermometer of the U. S. 

 Navy pattern, were added to the Laboratory equipment for use 

 in Professor Ward's course in Marine meteorology. 



Professor Atwood gave a number of lectures at Camp Devens 

 and completed the field-work and manuscript on the Physical 

 Geography of the Camp Devens Region for the U. S. Geological 

 Survey. 



He has directed the preparation of the chapter on land forms 

 for a new text-book on geology and geography for use in the 

 national Students' Army Training Corps. He also directed special 

 students in aerial photography and the making of maps based on 

 aeroplane photographs. 



Some time was given to the preparation of a report on the 

 Physiography of the San Juan Mountains. 



Associate Professor Woodworth continued his office-work on 

 the preparation of a report on the Geology of Cape Cod and the 

 islands of the south coast for the U. S. Geological Survey. A 



