538 Dr. WALTER ADAM on the 
TABLES. 
In the first columns of the following Tables are the actual 
measurements of an individual Camel, taken with compasses 
and callipers, of a radius suited to the extent of the bones; the 
girths of course otherwise. 
The measurements of the first columns are in the next column 
adjusted to the normal proportion, on the assumption that the 
aberrations in the form of an individual animal from the perfect 
form of its species may be at least as great as the inequalities of 
the right and the left sides of that individual animal. But the 
numbers assigned for these normal proportions are meant rather 
as an indication of what they may be, than as an averment that 
they really are as stated. Several, especially of those given for 
the vertebral dimensions, must be erroneous: they have been 
inserted for facility of comparison. Few adjustments exceed a 
quarter of an inch,—trifling in so large an animal,—and being 
placed beside the number of the actual measurement they can 
lead to no mistake. 
It is not improbable, that the symmetry of the swift Drome- 
` daries will be found to be much more complete than that of the 
Baggage-camel. 
The proportional parts in the penultimate column are 72nd 
parts of the basilar length of the cranium. This length being in 
the animal examined 18 inches, the proportional parts are the 
numbers in the preceding column multiplied by 4. 
The differences occupy the last column. 
The relative position of the numbers in the Tables is the same 
as that of the parts measured. 
The Roman numerals over the dimensions of the dorsal and 
of the succeeding vertebra, refer to the corresponding dimen- 
sions in the cervical vertebrz. 
