Order in barchart

Sorry if this is a FAQ -- I checked the archives and help files, but was
stumped.

In the data T3 (provided below) the values are sorted from lowest to
highest.

T3

10        7       19       13        5        3       15       18
2       24 
2.650568 2.666237 2.731649 2.749221 2.777130 2.801124 2.804472 2.813891
2.838316 2.839654 
      36       20       25       32       26       12       14       29
23        6 
2.843043 2.868335 2.882906 2.896539 2.922535 2.931397 2.939590 2.944353
2.983473 3.015235 
      39        4       17        9       30       21       33       22
8       35 
3.017590 3.020495 3.038758 3.066808 3.084511 3.086072 3.106873 3.127783
3.167053 3.173310 
      28       16       37        1       31       40       27       11
34       38 
3.173323 3.221106 3.236643 3.274417 3.274772 3.283696 3.307872 3.355327
3.382744 3.498301 


If I use barchart in the trellis library, the bars are arranged by factor
order of the labels (1,10,11,12,etc.).

barchart(T3,xlab="Mean Values",col="dark blue")

Would it be possible to have the bars arranged from highest to lowest in
terms of the values (2.65, 2.66, 2.73, etc.) as it is done in barplot?

barplot(T3,xlab="Mean Values",col="dark blue",horiz=T,cex.names=.5)

I would like to use barchart instead of barplot because of some of the
additional features of the lattice library.

Thanks,

Paul