96 REPORTS OF INVESTIGATIONS AND PROJECTS. 



In addition to the above, 50 individuals of pure-bred gigas grown directly 

 from de Vries seed have been described, types photographed, and root-tip fix- 

 ations made for the study of chromosome variation. All forms (41) found 

 among the following of Dr. Shull's cultures differing from the parental type 

 were similarly treated. 



Oenothera lamarckiana. Oenothera rubrinervis. 



gigas. cruciata. 



nanella. lata $ X O. lamarckiana $ . 



CONSTRUCTION. 



A shed of brick and concrete connecting with the stable and having an out- 

 side length of 50 meters was completed. This gives much-needed space for 

 cows, for storing wagons, brooders, pipe, and other bulky material, and also 

 a room for agricultural implements. A concrete pit for manure was also con- 

 structed. 



The poultry plant was moved to a situation on the hill. Some two months 

 were employed in this work and clearing the land and setting up the neces- 

 sary fences. A small portable house was purchased and set in the midst of the 

 plant for the temporary use of the poultryman. It is proposed to use this, 

 henceforth, for experimental work. 



A 5-inch well was driven at a desirable point on the land of the Biological 

 Laboratory by permission of the Brooklyn Institute, in consideration of sup- 

 plying its laboratory with part of the water during two months of the year. 

 A flow of 90 gallons per minute was obtained at a depth of 76 feet, at a cost 

 of $305. This supplies a ram which pumps water over the entire plant, the 

 pipe line being about 1.300 feet. Thus at a total cost for well, pipe, and ram 

 of $500, about $75 per year for electric power is saved and better service 

 given. The cost of repairs of the electric pump had become burdensome, and 

 it is believed with the ram a further saving will be made in repairs. 



Three weeks of the time of the constructor was spent in replacing the de- 

 caying basement floor of the residence wnth concrete. The construction of a 

 shelter for the launch has been begun. 



EQUIPMENT. 



Among the larger items of equipment were additional cabinets for storing 

 microscopical slides and for insects, breeding-cages for canary birds, and 

 shelves for the library. 



MAINTENANCE. 



The greenhouse, poultry houses and some outside woodwork of the main 

 building were painted. One of the cesspools was connected with an under- 

 ground sewerage-disposal system of the Waring type. To take care of the 

 occasional violent rains that were eroding the soil of our garden and destroy- 

 ing the roads, a system of catch-basins and distributing-pipes was laid, so that 

 now this water is largely carried to the sea underground. 



