BOTANY AND PLANT ECONOMICS 75 
White Pine (Pinus strobus), and the young tips of the Savin 
{Juniperus Sabina). 
Cases 3 and 4. — Lower portion. These cases display the 
Russian method of collecting the oils and resins of the Euro- 
pean Pitch Pine {Pinus sylvestris). This method consists in 
stripping off the bark from a large portion of the circumference 
of the tree and scraping off the exudation. This is continued 
for a period of five years. Note the original package of pitch 
scrapings as sold in the native markets; the resin, colophony 
and “pek,” as well as the various products of tapping and of 
distillation exhibited on the top shelf of these cases. Upper 
portion. Note the various products of turpentine orcharding 
from Pinus palustris in Georgia, as shown in tubes on the 
bottom shelf of the top of these cases. 
Case 5. — A temporary installation of the more interesting 
woods of Palestine many of which are mentioned in the Bible. 
The Oaks (Quercus pseudococcifera and Q. CBgilops)^ Pine, 
Olive {Olea europcea) and Plane Tree (Plafanus orientalis). 
Case 6 . — Various pine resins : Mexican ‘‘resina’^ from 
Pinus Mofitezumce, Japanese “Chan” from Pinus densiflora, 
“Khasia” from Pinus khasya of British India, turpentine from 
the Indian Pinus excelsa, and “trementina” from the Mexican 
Pinus teocote. Amber, a fossilized Tesin from prehistoric 
pines, from the newly discovered beds on Staten Island, New 
York, and an ancient Roman necklace of amber from excava- 
tions in Sicily are also exhibited in this case; note also partic- 
ularly fine natural amber nodules, and a clear, cut piece show- 
ing the inclusion of a Caddis fly, from Germany. 
Case 7. — This case contains a complete series of trunks 
of the Georgia Pine {Pinus palustris) showing the destructive 
method of “boxing” for turpentine and the appearance of the 
trees in the orchard from the first year’s boxing to the fifth 
year’s burning off. This “bleeding” of the trees does not, 
however, decrease the lumber value, provided the trees are 
cut soon after the tapping is concluded. 
Case 8. — Base of a Seacoast Pine {Pinus maritima) show- 
ing the Portugese method of boxing the trunks and collecting 
the resin. By this method the trees are not substantially in- 
jured and the yield of turpentine products, though less each 
