diff --git a/README.md b/README.md
index 42e1978..e71d3dc 100644
--- a/README.md
+++ b/README.md
@@ -70,17 +70,6 @@ principle is available to rationalize crystallization. In this [work](https://do
 ```
 
 
-####  Install PyStokes and its dependencies in an [environment](https://github.com/rajeshrinet/pystokes/blob/master/environment.yml) named "pystokes" via [Anaconda](https://docs.conda.io/projects/continuumio-conda/en/latest/user-guide/install/index.html)
-
-
-```bash
->> git clone https://github.com/rajeshrinet/pystokes.git
->> cd pystokes
->> make env
->> conda activate pystokes
->> make
-```
-
 ### Via pip
 
 Install the latest [PyPI](https://pypi.org/project/pystokes) version
diff --git a/environment.yml b/environment.yml
deleted file mode 100644
index c5942f6..0000000
--- a/environment.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-name: pystokes
-channels:
-  - conda-forge
-dependencies:
-  - python
-  - numpy
-  - matplotlib
-  - cython
-  - scipy 
-  - jupyter
-  - ipython
-  - nbconvert
-  - pytest 
-  - pytest-cov
diff --git a/makefile b/makefile
deleted file mode 100644
index 92c9c6a..0000000
--- a/makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-PYTHON=python
-path=examples
-recursive=True
-
-make:
-	@echo Installing pystokes...
-	${PYTHON} setup.py install
-
-clean-local:
-	@echo removing local compiled files
-	rm pystokes/*.c pystokes/*.html pystokes/*.cpp
-
-clean:
-	@echo removing all compiled files
-	${PYTHON} setup.py clean
-	rm pystokes/*.c pystokes/*.html
-
-env:
-	@echo creating conda environment...
-	conda env create --file environment.yml
-	# conda activate pystokes
-	@echo use make to install pystokes
-
-test:
-	@echo testing pystokes...
-	cd tests && python shortTests.py
-
-nbtest:
-	@echo testing example notebooks...
-	@echo test $(path)
-	cd tests && python notebookTests.py --path $(path) --recursive $(recursive)
-
-pypitest:
-	@echo testing pystokes...
-	python setup.py sdist bdist_wheel
-	python -m twine upload --repository testpypi dist/*
-
-pypi:
-	@echo testing pystokes...
-	python setup.py sdist bdist_wheel	
-	python -m twine upload dist/*
-
-cycov:
-	python setup.py build_ext --force --inplace --define CYTHON_TRACE
-	cp tests/shortTests.py tests_cov.py
-	pytest tests_cov.py  --cov=./ --cov-report=xml
diff --git a/pystokes/wallBounded.pxd b/pystokes/wallBounded.pxd
index 662e569..353cfd9 100644
--- a/pystokes/wallBounded.pxd
+++ b/pystokes/wallBounded.pxd
@@ -65,7 +65,7 @@ cdef class Rbm:
 @cython.nonecheck(False)
 @cython.wraparound(False)
 cdef class Flow:
-    cdef readonly double a, eta
+    cdef readonly double b, eta
     cdef readonly int Nt, N