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katysails
 
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Default We're Back!


Lisa gooped me up with
lotsa sunblock, but she got burnt

Why didn't you reciprocate?
--
katysails
s/v Chanteuse
Kirie Elite 32
http://katysails.tripod.com

"Women and cats will do as they please, and men and dogs should relax
and get used to the idea." - Robert A. Heinlein


  #72   Report Post  
Peter Wiley
 
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Default How to pith a toad (non-excretory)

In article , Flying Tadpole
wrote:

Peter Wiley wrote:

In article , Flying Tadpole
wrote:

FYI

Toads used to be pithed for frankensteinian biology experiments,
particularly dealing with hearts and nervous systems. Take one
live toad, preferably a cane toad, hold firmly by the back legs
so that it doesn't fly across the laboratory on the up swing,
swing around one's head then bring it down hard so that the head
cracks against the edge of the laboratory bench (not so hard that
its head snaps off and flies across the laboratory). Toad should
be unconscious or dead after that. Ignore movement. Sever the
backbone at the neck then with a probe push up the spinal nerve
conduit and pulp the spinal nerve and the cerebellum. Ignore
movement while doing so. Dissect out the heart, suspend between
supports, flood with saline and apply various stimulants. Watch
it beat. dissect out other bits of nerve and muscle, apply
electrodes, charge, watch responses.

The most revolting thing I was forced to do as an innocent
student.


Wimp. That was a lot of fun. The real challenge was doing it to lab
rats. You had to get the swing and angle just right to crack their
heads on the edge of the lab bench. My wife was doing Hons at the time
and killing rats wholesale.

The real hassle used to come when the rat's scaly tail skin would come
off halfway through the downswing. Catching a partially skinned rat in
a lab is pretty hilarious but you want to tuck your pants into your
socks first.

PDW


I avoided the psych students.


Biochem, not psych. Psych students were almost useless.

Skinning rats was a problem in the days I was teaching wildlife
courses. Rats had to held very carefully to avoid damaging tails
(prone to infection) while marking them (toe-clipping, not very
prone to infection but now proscribed). Had to bump of the rats
students significantly damaged, but that wasn't very many. I
used to enjoy watching students come back in from the early
morning mark/release sessions. You could tell which species of
rat they'd met by the amount of blood (theirs).


Ah, memories of trapping Rattus fuscipes in the national parks north of
Sydney and various animals round Smiths Lake. We got a possum in a big
trap one night. It wasn't happy.

Another time we fooled a kookaburra into swooping on a rubber snake and
trying to beat it to death on its tree.

My first degree had a major in population ecology. I picked all the
courses with good field trips.

PDW
  #73   Report Post  
Scout
 
Posts: n/a
Default How to pith a toad (non-excretory)

reminds me of the time one of my students slung my brand new sling
psychrometer too close to a lab bench, smashing both mercury bulbs against
the corner of the bench and sending shards of glass and droplets of Hg
everywhere.
Here is what he said: "ooopsy"
Scout

"Flying Tadpole" wrote

{snip} hold firmly by the back legs so that it doesn't fly across the
laboratory on the up swing,
swing around one's head then bring it down hard so that the head cracks
against the edge of the laboratory bench (not so hard that
its head snaps off and flies across the laboratory). {snip}



  #74   Report Post  
Flying Tadpole
 
Posts: n/a
Default How to pith a toad (non-excretory)



Peter Wiley wrote:

In article , Flying Tadpole
wrote:

Peter Wiley wrote:

In article , Flying Tadpole
wrote:

FYI

Toads used to be pithed for frankensteinian biology experiments,
particularly dealing with hearts and nervous systems. Take one
live toad, preferably a cane toad, hold firmly by the back legs
so that it doesn't fly across the laboratory on the up swing,
swing around one's head then bring it down hard so that the head
cracks against the edge of the laboratory bench (not so hard that
its head snaps off and flies across the laboratory). Toad should
be unconscious or dead after that. Ignore movement. Sever the
backbone at the neck then with a probe push up the spinal nerve
conduit and pulp the spinal nerve and the cerebellum. Ignore
movement while doing so. Dissect out the heart, suspend between
supports, flood with saline and apply various stimulants. Watch
it beat. dissect out other bits of nerve and muscle, apply
electrodes, charge, watch responses.

The most revolting thing I was forced to do as an innocent
student.

Wimp. That was a lot of fun. The real challenge was doing it to lab
rats. You had to get the swing and angle just right to crack their
heads on the edge of the lab bench. My wife was doing Hons at the time
and killing rats wholesale.

The real hassle used to come when the rat's scaly tail skin would come
off halfway through the downswing. Catching a partially skinned rat in
a lab is pretty hilarious but you want to tuck your pants into your
socks first.

PDW


I avoided the psych students.


Biochem, not psych. Psych students were almost useless.

Skinning rats was a problem in the days I was teaching wildlife
courses. Rats had to held very carefully to avoid damaging tails
(prone to infection) while marking them (toe-clipping, not very
prone to infection but now proscribed). Had to bump of the rats
students significantly damaged, but that wasn't very many. I
used to enjoy watching students come back in from the early
morning mark/release sessions. You could tell which species of
rat they'd met by the amount of blood (theirs).


Ah, memories of trapping Rattus fuscipes in the national parks north of
Sydney and various animals round Smiths Lake. We got a possum in a big
trap one night. It wasn't happy.

Another time we fooled a kookaburra into swooping on a rubber snake and
trying to beat it to death on its tree.

My first degree had a major in population ecology. I picked all the
courses with good field trips.


Rattus fuscipes was the furry friendly one. It was Rattus
lutreolus that was the snakey sod.

I didn't get my claws into students until 2nd year, but they had
to do a natural resources equivalent to farm practice in first
year. I set them keeping tabs on the Roseworthy possums, to get
rid of harry Butler ideas (yes, that long ago) and discover that
happy furry cuddly native animals were lethal hateful spitting
beasts with five razor blades on each hand and every one aimed at
you. ALso spent many happy hours marching them through mangrove
mud, and teaching them basic power- and row-boat safety
(mandatory a.s.asa content)

ANd yes, I had students like you. The main issue was not the
rubber goods but the bongs.
--
Flying Tadpole

-------------------------
Faint echoes, sometimes inaudible, of the newsgroup's glorious
past are downloadable at http://music.download.com/internetopera
  #75   Report Post  
Flying Tadpole
 
Posts: n/a
Default How to pith a toad (non-excretory)



Scout wrote:

reminds me of the time one of my students slung my brand new sling
psychrometer too close to a lab bench, smashing both mercury bulbs against
the corner of the bench and sending shards of glass and droplets of Hg
everywhere.
Here is what he said: "ooopsy"
Scout


Yes, but did he die later of mercury poisoning?

--
Flying Tadpole

-------------------------
Faint echoes, sometimes inaudible, of the newsgroup's glorious
past are downloadable at http://music.download.com/internetopera


  #76   Report Post  
DSK
 
Posts: n/a
Default We're Back!

Seahag wrote:
Right now I'm working on the exterior teak. I finally got Cetol on the cap
rail under the taffrail.


AAAACK... Cetol?!?!? What's the point?


... We've finally come up with a do-able plan for the
mainmast support rebuild, so that might happen soon. The weather's getting
pretty hot and sticky so I don't know how much I can do.


We're already at "hot & sticky." Temps hovering around 100 (38 C) on our
dock Saturday afternoon. Hordes of mostquitoes, too. What you do about
it is get up at 00:dark:30 and work by the pink light of dawn, then take
a nap in the air conditioning (or work on some different project down in
the nice cool engine room). Gotta make some adjustments to life down South.

What's up with mast supports? Are you switching to deck stepped masts?

BTW was it Bill who filmed that footage of the Clintons snoozing at
Reagan's funeral? I didn't see it but a couple of friends have mentioned
it... priceless!

Fresh Breezes- Doug King

  #77   Report Post  
Scout
 
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Default How to pith a toad (non-excretory)

no, but apparently, he did get a bit of it in my tuna sandwich.
Scout

"Flying Tadpole" wrote:
Yes, but did he die later of mercury poisoning?


Scout wrote:
reminds me of the time one of my students slung my brand new sling
psychrometer too close to a lab bench, smashing both mercury bulbs

against
the corner of the bench and sending shards of glass and droplets of Hg
everywhere.
Here is what he said: "ooopsy"
Scout



  #78   Report Post  
Flying Tadpole
 
Posts: n/a
Default How to pith a toad (non-excretory)

Ah. Melted your fillings? (pre-epoxy days)

Scout wrote:

no, but apparently, he did get a bit of it in my tuna sandwich.
Scout

"Flying Tadpole" wrote:
Yes, but did he die later of mercury poisoning?


Scout wrote:
reminds me of the time one of my students slung my brand new sling
psychrometer too close to a lab bench, smashing both mercury bulbs

against
the corner of the bench and sending shards of glass and droplets of Hg
everywhere.
Here is what he said: "ooopsy"
Scout


--
Flying Tadpole

-------------------------
Faint echoes, sometimes inaudible, of the newsgroup's glorious
past are downloadable at http://music.download.com/internetopera
  #79   Report Post  
Scout
 
Posts: n/a
Default How to pith a toad (non-excretory)

I love the eopoxies ~ I go to the Dentist just for the blue-light show!
Scout

"Flying Tadpole" wrote in message
...
Ah. Melted your fillings? (pre-epoxy days)

Scout wrote:

no, but apparently, he did get a bit of it in my tuna sandwich.
Scout

"Flying Tadpole" wrote:
Yes, but did he die later of mercury poisoning?


Scout wrote:
reminds me of the time one of my students slung my brand new sling
psychrometer too close to a lab bench, smashing both mercury bulbs

against
the corner of the bench and sending shards of glass and droplets of

Hg
everywhere.
Here is what he said: "ooopsy"
Scout


--
Flying Tadpole

-------------------------
Faint echoes, sometimes inaudible, of the newsgroup's glorious
past are downloadable at http://music.download.com/internetopera



  #80   Report Post  
Flying Tadpole
 
Posts: n/a
Default How to pith a toad (non-excretory)

Good for wooden boatbulding too!

Scout wrote:

I love the eopoxies ~ I go to the Dentist just for the blue-light show!
Scout

"Flying Tadpole" wrote in message
...
Ah. Melted your fillings? (pre-epoxy days)

Scout wrote:

no, but apparently, he did get a bit of it in my tuna sandwich.
Scout

"Flying Tadpole" wrote:
Yes, but did he die later of mercury poisoning?

Scout wrote:
reminds me of the time one of my students slung my brand new sling
psychrometer too close to a lab bench, smashing both mercury bulbs
against
the corner of the bench and sending shards of glass and droplets of

Hg
everywhere.
Here is what he said: "ooopsy"
Scout


--
Flying Tadpole

-------------------------
Faint echoes, sometimes inaudible, of the newsgroup's glorious
past are downloadable at http://music.download.com/internetopera


--
Flying Tadpole

-------------------------
Faint echoes, sometimes inaudible, of the newsgroup's glorious
past are downloadable at http://music.download.com/internetopera
 
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