UNIVERSITY OF FLORIDA


 BTY. 504.-Dispersal of Plants. 2 hours, and 3 hours laboratory. 3
credits. Prequisite: BTY. 400 or BTY. 401.
 The effect of geographical and environmental factors on the mode of dispersal of
plants.
 BTY. 555.-Botany Seminar. 1 hour. 1 credit. Offered 1, 2.
 The literature of various fields of botany. Required of graduate majors in botany.
 BTY. 570.-Research in Botany. 3 hours laboratory or field work for
each credit. 1-4 credits. Prerequisites: BTY. 500 and 555. Offered 1, 2, 3.
 Conducting research on assigned problems in one of the fields of botany.

 BUILDING CONSTRUCTION
 Instructional Staff 1951-52
 Grand, J. L. R., Head; Block, H. H., Dillon, R. M., Flagg, N. B., Smith, A. A.
 BCN. 301-302-303-304.-Projects in Building Construction, Group 1. 24
hours conference-laboratory per week. 3 credits each; group total, 12
credits. Prerequisite: Completion of Lower Division program in Building Con-
struction or equivalent. Offered 1, 2, 3.
 These projects comprise the beginning work in the Upper Division, and include:
an introduction to construction methods, their historical background and current
trends; the study of the various building materials, their nature, history, use and
measurement; preliminary site reconnaissance, layout, and surveys; excavation; a com-
prehensive study of light frame construction including foundations; the preparation and
interpretation of construction drawings and the computation of material quantities; the
presentation of applied structural design by the continuation of work in strength of
materials, action of forces, reactions, bending moments, theories of flexure, shear, de-
flection, and the design of simple structural members; the design and installation of
plumbing, and the code requirements and trade practices affecting these installations.
 BCN. 311-312-313-314.-Projects in Building Construction, Group 2. 24
hours conference-laboratory per week. 3 credits each; group total, 12 credits.
Prerequisites: Completion of BCN. 301-302-303-304, or equivalent. Offered
1, 2, 3.
 These projects are a continuation of the work in Group 1, and in addition in-
clude: a study of exterior and interior finishes and trim; floor and wall material and
construction methods; masonry construction; heavy timber and steel construction methods
and equipment-including columns, beams, trusses and connections; the capabilities of
power tools and construction equipment; quantity surveys and estimating for the above;
basic design and installation of heating plants; plumbing estimates; theories and design
of structural elements, graphic statics, structural analysis of connections, drawings of
assemblies and details.
 BCN. 401-402-403-404.-Projects in Building Construction, Group 3. 24
hours conference-laboratory per week. 3 credits each; group total, 12 credits.
Prerequisites: Completion of BCN. 311-312-313-314, or equivalent. Offered
1, 2, 3.
 These projects are a continuation of the work in Groups 1 and 2 and in addition
include: a detailed study of doors and windows, hardware and painting, papering and
glazing; roofing and concrete materials; a study of heavy construction methods including
foundations, piling, bracing, needling, shoring and underpinning; waterproofing and
dampproofing; basic design and installation of electrical wiring, illumination, and verti-
cal transportation; quantity surveys and estimates for the above; establishing lines and

The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.