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Central Bay |
The greenhouse holds plants for demonstrations, supports student-faculty
research, and is used by students in a variety of classes whenever it is
necessary to grow plants. The facility is located on the roof of the Rickey
Science Center and has a sweeping view of Marietta and the
Ohio River Valley. There are three rooms - a tropical room, a large central bay
for general use, and a desert room.
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The tropical room holds
several beds containing bananas, papayas, mangroves and
other tropical trees and plants (as well as small aquatic
areas).

Bananas growing in Tropical Room |

Hibiscus
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The central bay is set for a temperate environment (without the
frost!) and contains a large cycad (over 20 years old), a bed with two in-ground
ponds for turtles and fish, and bench area for demonstration plants and research
space. The ponds are connected to a biofilter which absorbs and recycles
wastes from the aquatic organisms and itself serves as a habitat for a number of
aquatic plants. In addition to the aquatic animals (including 3 species of
turtles), a number of small reptile and amphibian species also make the
greenhouse home and help to control pests. |

Central Bay During Renovation |
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The desert room is the smallest of the
3 bays and is used to hold desert plants. In
addition, beds on the ground serve as habitat for two
large African Spurred Tortoises.
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The greenhouse has
recently been renovated for the first time since its
construction in 1972 as part of the Bartlett
Biology Building. The
renovation was part of the overall renovation of the
Bartlett Biology Building as part of the incorporation of
that building into the new Rickey Science Center, made
possible by the generosity of Dave Rickey and a number of
other supporters of the college. The renovation, planned and
spearheaded by Dr. David Brown, consisted of a complete
restoration of the vent system, sealing and painting of
the greenhouse floor, removal of the old planting beds
(including moving the 15 foot tall cycad from the tropical
to the temperate bay), rearrangement of the plant benches,
and extensive repainting. 
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Installation of Turtle Habitat
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In addition, an
automated control system was installed. This system,
which included for the first time an evaporative cooling
system to limit summer temperatures, automatically opens
and closes the roofline and side vents and activates fans
and heating and cooling units as needed. Each bay
has its own heating and cooling system and can be
controlled independently of the other two bays.

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| The Marietta College
Physical Plant did many of the renovations and also ran
new gas lines to the greenhouse so that the old hot-water
heating system could be replaced with a more reliable
natural gas based system. In addition, Physical
Plant connected the electrical system for the
heating system and the automated control system to the
standby generator for the Rickey Science Center, thus
insuring that heat will be maintained in the even of a
wintertime power outage. The Marietta College IT
Department ran network and phone cables so that the system
can be monitored remotely by the Biology Faculty, and a
phone link will notify Campus Police in the event of any
problems in the space. |

Papaya |
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More photos to come as the plantings
fill in! |
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Removal of old Cycad bed |

Cycad in its new location
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