157 
Two animals were experimented upon, one an aged mare and the 
other a six year old gelding. The experiments were apparently 
continued longer with the horse than with the mare. No grain was 
given and the amount of dried Eguisetum mixed with the hay was 
gradually increased from half a pound to six pounds per day. At first 
the animals seemed to prefer the Eqguisetum to the rest of the hay, 
but on the fourth day the mare and on the twelfth the horse showed 
an aversion to it which increased as the experiment continued till 
near the end the greatest difficulty was experienced in getting the 
animals to touch it. The first symptoms of poisoning appeare 
early. On about the fourteenth day the animals began to show a 
hesitating, staggering gait, which alternately appeared and disap- 
peared throughout the course of the experiment. Other symptoms 
noted were loss of muscular control, poor condition of the flesh, and 
an unusual sensitiveness of the shoulder, these being accompanied 
y normal or subnormal temperature and a good appetite. The 
diuretic properties of the plant were shown by the constant satura- 
tion of the ground with urine which was persistently alkaline. It 
was found that in general the attacks of staggering coincided with 
the wet cold days, at least during the first half of the experiment. 
Towards the last the horse, losing control of its legs, fell many 
times. It also appeared more stupid and yawned frequently, The 
experiment was abandoned here owing to the refusal of the horse 
to take Eguisetum either as hay or as a decoction. The vicious 
nature of the animal prevented the use of the decoction as a drench. 
The conclusions arrived at are two, namely, that the weed must 
be present in large quantities to be dangerous to horses, but that 
when taken in sufficient amount it is fatal to these animals, 
Wena a: 
 Symplocos luzoniensis—Some confusion has arisen between two 
Philippine species of Symplocos which it is desirable to clear up. 
The name Symplocos montana, Vidal, proving untenable, because of 
the earlier S. montana, Brongn. & Gris., a New Caledonian species, 
the Philippine plant was re-named S. luzontensis, Rolfe. e 
latter Brand has now referred a specimen collected in the Caraballo 
Mountains, in the Province of Nueva Ecija, Vidal, 2141, which 
unfortunately does not agree with the original—a plant apparently 
not seen by Brand. From this specimen the technical description 
and the characters in the key in Brand’s Monograph were evidently 
drawn. Apparently relying upon these characters Merrill has 
described a new species under the name of S. depauperata, which I 
cannot distinguish from S, luzoniensis, Rolfe. The following is the 
