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XI. Credit. 
Grading is based upon — attendance, status of note-books, 
recitations and examinations ; status of special assignments 
and collections ; general deportment and attitude toward the 
work. Credit is not given for incomplete work. Tardy work 
is graded accordingly. All examinations must be taken. 
Credit for special work, and permission to take courses with- 
out credit, is arranged for by consultation. 
XII. Special Work. 
Students registered in any courses (except Botany 1 and 2, 
and Horticulture 1), may elect special subjects or problems 
as a part of their laboratory work. This choice is granted 
only to students in good standing, who show sufficient prepa- 
ration and ability to advantageously carry on studies of an in- 
vestigational nature. 
XIII. Research Work. 
In addition to its teaching functions, the Department in- 
vestigates problems of specific interest and value. 
An extensive study has been made of the various methods 
of preparing, staining, and otherwise treating woods for in- 
terior finishing, cabinet work, etc. A collection of such woods 
was made, samples were treated with various combinations 
of fillers, stains, polishes, varnishes, etc. Records were kept, 
and photographs made, and certain conclusions reached. 
The preserving of fine fruits for exhibition purpose has been 
a largely unsolved problem for Hawaii. The Department has 
been, and is now, conducting a series of experiments to de- 
termine the proper preservatives for each kind of island fruit. 
It is a well-known fact among exhibitors that a liquid suit- 
able, for example, for preserving tomatoes, will not be satis- 
factory for pineapples. The proper mixture must be deter- 
mined empirically for each species. This is a laborious task, 
but when the formula is once attained, that particular problem 
is definitely solved. There are many calls from the mainland 
for exhibits of Hawaiian fruits, and the value of this work is 
potent. The Promotion Committee has kindly assisted in this 
investigation by the loan of certain exhibition glassware. 
Nearly every yard in Honolulu has one or more palm trees 
therein — there are some seventy species in Hawaii — and yet 
very few people know the correct names of the palms. So 
a botanical survey is being made of the nalms of Hawaii — pho- 
tographs taken of the different species, literature searched, 
and material gathered, which will finally be printed, and thus 
made available for general use. 
