42 
Dr. MacDougal spent a day at Langtry, Texas, on his way to 
Tucson, and shipped from there a small collection of interesting 
cactuses, which have reached the Garden in safety. fter the 
completion of his examination of the laboratory and consultation 
with Dr. Cannon he will go on west to Yuma, where arrange- 
ments have been made for him to explore botanically the valley 
of the Colorado River from that point to the mouth of the river, 
and also the western shore of the northern part of the Gulf of 
California. As the flora of this region is practically unknown, it 
is anticipated that his observations and collections will be of very 
great interest and value. The trip down the river and into the 
Gulf will be made by boat, and the return will be made overland 
by wagon. It is expected that Dr. MacDougal will return to the 
The longest and most expensive bridge to be built in the 
Garden was arranged for on December 30, by the award of a con- 
tract by the ee liars of Parks to Mr.,M. J. Leahy for the 
sum of $69,000, on plans and specifications prepared by Mr. John 
R. Brinley, eee gardener. his bridge will carry the main 
east and west driveway across the valley of the Bronx River, at 
a point about 400 feet north of the present ‘‘ Blue Bridge,” at the 
north end of the hemlock forest ; it will be built for the most part 
of rubble stone taken from the surplus rock excavations just east 
of the public conservatories, with granite trimmings, and its total 
length will be about 300 feet. There will be five arches, one over 
the river, two lateral ones to permit rapid passage of flood water, 
and two small ones near the two ends at the locations of paths. 
The time allowed to complete the whole work is 200 consecu- 
tive working days, so it is hoped that the structure will be com- 
pleted by the autumn. The Telford foundation of the driveway 
connecting with it on the western side of the valley is laid up, but 
work has not yet been commenced on its approaches from the 
east, for which, in addition to other work, an appropriation is now 
being asked by the oe of Parks from the Board of 
Estimate and Apportionment. 
Stone for the area of paths in various parts of the 
grounds is being quarried in the rear of the museum building 
