-6- 
The movmt for the queen holder Is Bftde of wood, and consiats of a 
queen-holder movmting block ( QHMB ) att&ohed to a horitontal strip (HS). 
The atrip is l/2 by 5/4 by 6 inches, with a hole bored near eaoh eixd to 
that it can slip up euad down on the two posts and with set screws to 
hold it fast at any desired level. Near the right-*and post is a hori- 
zontal slot about 2 inohea long* M long bolt passing through this slot 
and also through the block makes it possible to adjust the block at any 
desired angle* The queen holder (QB) fits into a hole in this block, and 
a set screw holds it seourejy in place. A wide groove is out on the att- 
sorew side of the hole, and a piece of leather tacked to the top of the 
block fits into this groove preventing the set screw from scratching or 
breaking the queen holder* It alec keeps the queen holder in place by 
light friction until the set screw can be tij^tened* The set screw works 
in a hole bored Just snail enough for the threads to take hold* 
Since the mountings for the syringe (S), the ventral hook (VH), and 
the sting hook ( STH ) are essentially similar, a detailed description of the 
syringe mounting will suffice for all three* A block of wood, the syringe 
mounting block ( SMB ), is bored so that it will fit snugly over the post 
as illustrated* On the left side of the post this block is divided by a 
vertical saw out, and a S/l6»inch bolt is provided with which the separated 
parts can be pulled together if necessary to increase friction on the post* 
Thia bolt may have a wing nut, or one aide of the divided block may be 
bored to a analler diameter* In any caee the head of the bolt must be 
flat enough not to interfere with the movement of the syringe* 
On the other side of the post the syringe holder (SH) is attached to 
the block* The syringe holder is simply a piece of sheet metal cut and 
bent into the shape of a box l/2 by 1/2 by 1 l/2 inches* A l/8 by 1-inch 
bolt 1/2 inch from one ezul holds i;he bottom of this box to the block* 
This bolt projects about 1/2 inch back of the block, and a piece of coil 
spring is put on under the nut so that the ffiotion between the box and 
the block can be increased or decreased by tightening or loosening the 
nut* In each end of the box a hole is bored of sxioh a size that the 
syringe will slip through easily but not loosely* A oxirved piece of 
clock mainspring (SP) slipped in between the syringe and the side of the 
box holds the syringe in place* The ciirvat\u*e of this spring can be ad*« 
Justed to permit the syringe to slip in and out easily but still stay in 
place when released* The ventral hook and stizig hook are mounted in the 
same way, except that the boxes for them are s/8 by s/S by 1 l/2 inches* 
It is important to keep the syringe and the hook handles clean and 
polished with oil or a hard wax to make them slip easily* If the wooden 
parts are treated with wax, they will not expand and contract excessively 
with changes in humidity* 
Queen Holder 
The queen holder (fig* 6) is a modifioation of the type devised by 
Jas* I* Hambleton and first used extensively by Nolan (£) • It is a tube 
slightly constricted at one end, into which a long stopper fits snugly* 
The queen is made to back into the holder until her abdomen protrudes 
